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Review

Poorly Investigated Ecuadorian Medicinal Plants

1
Departamento de Química, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador
2
Department of Medical Analysis, Faculty of Applied Science, Tishk International University, Erbil 44001, Iraq
*
Author to whom correspondence should be addressed.
Plants 2022, 11(12), 1590; https://doi.org/10.3390/plants11121590
Submission received: 10 May 2022 / Revised: 10 June 2022 / Accepted: 11 June 2022 / Published: 16 June 2022

Abstract

:
Ecuador has, in proportion of its size, one of the richest floras of Latin America and the world; the country also has an immense cultural heritage due to the presence of different ethnic groups that have implemented the use of many wild and cultivated plants, mainly as medicinal remedies. In a recent publication, we have summarized the results of research activities recently carried out on about 120 plants native to Ecuador, which includes the structures of non-volatile isolated compounds, as well as the chemical composition of essential oils (EOs) and the in vitro tested biological activity data. For the sake of completeness, we have collected in this paper the main information obtained from recent ethnobotanical investigations on other important Ecuadorian medicinal plants for which phytochemical, pharmacological, and toxicological studies are, however, still largely lacking. Thus, one of the objectives of this paper is to preserve the traditional knowledge of Ecuadorian Indigenous communities which, being transmitted orally, is in danger of becoming lost. Moreover, it is our intention to stimulate more extensive studies on the rich medicinal flora of the country, which can provide economic and social benefits, especially to the people who traditionally cultivate or collect the plants.

1. Introduction

The different ethnic groups living in Ecuador have managed, through a process of social and biological evolution, to manage and use numerous medicinal plants for their own benefit [1,2]. In fact, in Indigenous communities, traditional healer practitioners and shamans use a variety of medicinal plants and natural remedies for their health-care practices and religious rituals. This knowledge is entirely empirical and is passed orally from generation to generation, thus it is in danger of becoming lost [3]. Moreover, the ancestral consumption of medicinal and hallucinogenic plants by native peoples [4] is based on popular traditions, and on the apparent efficacy and safety of these remedies for the treatments and cures of ailments of different kinds, or for performing rituals [5]. However, no scientific evidence has validated most of these effects. This situation is common to most developing countries, where the cost of western world drugs is often prohibitive. As a result, it is estimated that about 60% of the world’s population uses plants almost exclusively as a source of medicines, although there is generally no control over the chemical compositions, while the effectiveness and the absence of chronic toxicity are all to be demonstrated.
Ecuador (Figure 1), thanks to its high biodiversity, is included in the list of the 17 megadiverse world countries [6], all of which are partially or totally located between the tropics. Moreover, it is worthwhile to note that the surface of Ecuador is the smallest among the megadiverse countries, with around 258,000 km2, which correspond to only 0.02% of the earth’s surface. Regarding the number of native vascular plants growing in Ecuador, the Catalogue of the Vascular Plants of Ecuador, published in 1999, listed a total of 15,306 species, including 1298 pteridophytes, 17 gymnosperms, and 13,991 angiosperms [7]. Recently, the number of native taxa has been increased to 17,500 [8,9], of which from 4500 to 5500 are endemic [10,11]. However, it is estimated that, with the assessment of the studies on the Ecuadorian flora, the total number of vascular plants could reach 25,000 [11], which is just below 7% of the world’s known plants.
Despite the worldwide recognition as a megadiverse country, there is no general agreement on which components of Ecuador’s biodiversity are to be studied scientifically and used sustainably as a priority. In this context, we believe that an intelligent exploitation of the different useful vascular plants, and within them the hundreds of medicinal species used by the Indigenous communities, could provide numerous economic and social benefits to the entire population of Ecuador. In this regard, it is important to remember that the World Health Organization (WHO) has recommended the studies in the field of traditional medicinal plants as an aid to developing countries [12]. It should also be considered that more than 25% of the drugs on the market in industrialized countries are based on natural compounds or their derivatives; in particular, 60–80% of antibacterial and anticancer drugs are of natural origin [13,14]. Thus, the search for new bioactive lead compounds of natural origin, especially from poorly investigated regions of biodiversity, remains one of the main strategic lines of pharmaceutical research.
For these reasons, aimed at enhancing the value of the botanical resources of Ecuador and at sustaining the medicinal uses of local plants by scientific evidence, we have summarized the results of research activities carried out on hundreds of species growing in Ecuador in a couple of recent publications [2,15]. They include the structures of isolated non-volatile compounds, as well as the chemical composition of essential oils (EOs) and in vitro tested biological activity data. However, phytochemical, pharmacological, and toxicological studies are still largely lacking for several other native and endemic plants used in the traditional medicine of Ecuador, which are mentioned in a few ethnobotanical studies [15,16,17,18,19,20,21,22]. We believe that also orphan or poorly investigated medicinal plants may become important sources of secondary biologically active metabolites and give different opportunities for their sustainable uses. Therefore, in this paper, we have critically collected the available pertinent information about poorly investigated traditional native and endemic plants of Ecuador (Table 1), with the intention to stimulate further scientific investigations on the rich medicinal flora of the country. When reported in literature, phytochemical and/or pharmacological data of a species included in Table 1 are briefly described. For the sake of ethnopharmacological completeness, imported species used in the traditional medicine of Ecuador, which have not been reported in the previous reviews [2,15], are included in Table 2.

2. Research Strategies and Literature Sources

The data included in this paper have been retrieved using the keywords “medicinal plants from Ecuador”, “ethnomedicine”, “traditional uses”, and “medicinal plants” in different databases including PubMed, SciFinder, Springer, Elsevier, Wiley, Web of Science, and Google Scholar.
Plants with incorrect botanical classification or without the name of the species have not been included in Table 1. The plant scientific names were checked with the database WFO (2021): World Flora Online, published on the Internet at http://www.worldfloraonline.org [23] (accessed on 23 December 2021); Tropicos.org. Missouri Botanical Garden at https://www.tropicos.org/home [24] (accessed on 28 December 2021); Global Biodiversity Information Facility Ecuador at https://www.gbif.org/es/country/EC/summary [25] (accessed on 29 December 2021), and Enciclopedia de las Plantas Utiles del Ecuador [8]. Information from master’s and doctoral dissertations were not considered for the preparation of this review.

3. Ethnobotanical and Ethnopharmacological Data

A total of 257 medicinal plants are listed in Table 1 and Table 2, divided by 78 botanical families. They include 141 native and 11 endemic species (Table 1), and 105 species introduced from different regions of the world (Table 2). For each taxon appearing in the Tables, the botanical and the common names, the used part(s), as well as the traditional uses, are also reported.
The botanical family with the highest number of medicinal plants listed in Table 1 and Table 2 is Asteraceae (10.5%) with 15 native, 1 endemic, and 11 introduced species, followed by Lamiaceae (5.8%) with 4 native and 11 introduced species, and Solanaceae (5.1%) with 13 native species. The other botanical families contain from 1 to 11 species, accounting from 0.4 to 4.3% of the total number of taxa.
The use of endemic and native medicinal species exceeds by far the use of introduced medicinal species. On the other hand, introduced plants have an extensive use in the traditional medicine of Ecuador. This finding has been explained by the great abundance or accessibility (availability hypothesis), the ability to cure pathological conditions that are not treated by native plants (diversification hypothesis), or as a result of many different simultaneous uses (versatility hypothesis) [26].
Table 1. Botanical and vernacular names, phytochemical and pharmacological data, used part(s), and traditional uses of native and endemic medicinal plants of Ecuador a.
Table 1. Botanical and vernacular names, phytochemical and pharmacological data, used part(s), and traditional uses of native and endemic medicinal plants of Ecuador a.
No.Botanical NameVernacular NamePhytochemical and Pharmacological Data bUsed Part(s) of the PlantTraditional Uses
ACANTHACEAE
1Justicia pectoralis Jacq.Saucillo, tigrecilloNo information is reported in literature.BranchesIt is used orally to treat general disorders of nervous and dermatological systems, and culture-related syndromes [4,16,20,21,22].
AMARANTHACEAE
2Alternanthera porrigens (Jacq.) KunzeMoradillaNo information is reported in literature.Branches, flowersIt is used orally and in baths to treat general disorders of the gynecological system [20,21].
3Amaranthus caudatus L.Amaranto, ataco moradoNo information is reported in literature.InflorescencesIt is used orally and in baths to treat disorders of the circulatory, gynecological, and respiratory systems [20,21].
4Amaranthus cruentus L.Ataco, sangoracheNo information is reported in literature.Inflorescences, leavesAnti-inflammatory, astringent, anti-flu, antihemorrhagic, diuretic and tonic, carminative, emmenagogue, hepatic, stimulant, to enhance blood circulation, and to treat abdominal pain related to menstruation [4,16,20].
5Amaranthus hybridus L.Bledo, atacoNo information is reported in literature.InflorescencesIt is used orally to treat general disorders of the circulatory, gynecological, respiratory, and urinary systems [21].
6Amaranthus quitensis KunthAtacoNo information is reported in literature.Leaves, rootsPain relief (at joints, head, throat), and to treat gastrointestinal and respiratory problems [18].
7Iresine diffusa Humb. & Bonp. Ex WilldTigrecillo, velo de novia, chulco, escancelNo information is reported in literature.BranchesIn topical applications, oral poultices, and washings to heal disorders of the dermatological, digestive, gynecological, urinary, nervous, and respiratory systems [21].
8Iresine herbstii Hook.Escancel, lancetilla, tigrecilloThe isoflavanone 2′,2,5-trimethoxy-6,7-methylenedioxyisoflavanone, together with the isoflavone tlatlancuayin (2′,5-dimethoxy-6,7-methylenedioxyisoflavone) were isolated from the aerial parts [27].Leaves, stalks, whole plant, stems, branchesAnti-inflammatory, anti-flu, analgesic, diuretic, sedative, and tonic. To treat intestinal, uterus, and vaginal infections, injuries, liver and kidney problems, general disorders of the gynecological, nervous, urinary, respiratory, dermatological, and digestive systems, mal aire (bad air) d, and culture-related syndromes [4,16,20,21,22].
9Marchantia polymorpha L.Sapo yuyuNo information is reported in literature.Whole plantTo heal body malaise [4].
APIACEAE
10Arracacia xanthorrhiza Bancr. cZanahoria blancaThis species is well known as food.LeavesTo eliminate the cattle placenta [4].
11Eryngium foetidum L.Culantro extranjeroPhytochemical analysis of the leaves indicated the presence of flavonoids, tannins, a saponin and several triterpenoids, as well as the absence of alkaloids. A significant constituent of the EO of the plant is (E)-2-dodecenal (“eryngial”), accompanied by minor amounts of trimethylbenzaldehyde isomers. Pharmacological studies of the aerial parts have demonstrated anthelmintic activity due to eryngial, anti-inflammatory action due to the phytosterol fractions, anti-convulsant activity, and selective antibacterial activity against Salmonella and Erwinia species [28].Whole plantIt is used to treat stomach pain [22].
APOCYNACEAE
12Lacmellea spaciosa WoodsonChicleNo information is reported in literature.FruitsHuaorani eat fruits. The latex from the trunk is used to clean teeth and as chewing gum [19].
13Marsdenia condurango Rchb. fCondurangoPregnane glycosides isolated from the bark of M. cundurango were evaluated for their cytotoxic activity against human HL-60 leukemia cells, A549 lung adenocarcinoma cells, and TIG-3 normal lung cells. Moreover, a representative pregnane glycoside induced apoptosis in HL-60 cells [29].BarkIt is used orally to treat general disorders of the digestive system [21].
ARECACEAE
14Ceroxylon parvifrons (Engel) H. Wendl.Palma de ramosNo information is reported in literature.LeavesThe aerial parts are used as incense [4].
ASCLEPIADACEAE
15Orthosia ellemannii (Morillo) Liede & MeveCola de caballoNo information is reported in literature.BranchesIt is used orally to treat general disorders of the urinary system [21].
ASTERACEAE
16Aequatorium jamesonii (S.F. Blake) C. JeffreyGuangaloNo information is reported in literature.BranchesBranches are rubbed to treat culture-related syndromes [21].
17Achyrocline hallii HieronSacha algodón, lechugillaNo information is reported in literature.Leaves, whole plantTo treat disorders of the digestive system and injuries [4,21].
18Ambrosia arborescens Mill.Marco, altamisoSotillo et al. investigated the anticancer activity of sesquiterpene lactones isolated from the plant and a few synthetic derivatives against breast cancer cell lines, especially against cancer stem cells (CSCs) [30].Leaves, branchesPain relief (joints, head, throat), and to treat gastrointestinal, respiratory, and muscular problems. Topical applications and rubbings are also used to treat disorders of the dermatological system and culture-related syndromes [18,21].
19Ambrosia artemisioides Meyen & Walpers ex MeyenMarcoCompounds derived from allantolactone, as well as epieudesmane and oplopanone sesquiterpenes have been isolated from samples of A. artemisioides collected in the Tacna region of southern Peru [31].BranchesTo cure the fever or the cold caused by cold air or strong winds (locally known as mal aire in Spanish) d [4].
20Aristeguietia persicifolia (Kunth) R.M. King & H. RobIshpingo, monte de culebraNo information is reported in literature.BranchesBranches are rubbed to treat culture-related syndromes [21].
21Artemisia sodiroi HieronAjenjo, alcanforA specimen collected in Ecuador gave a volatile fraction which contained sabinyl acetate (65.8%) as the main constituent [32].BranchesBranches are rubbed to treat culture-related syndromes [21]. and gargles are used to heal disorders of the respiratory system [21].
22Baccharis oblongifolia (Ruiz & Pav.) Pers.ChilcaThe flavonoids oblongifoliosides A and B have been isolated from the leaves [33].BranchesTo cure a restless and confused child, and in postpartum baths [4].
23Baccharis latifolia (Ruiz & Pav.) Pers.Chilca largaA specimen collected in Ecuador afforded an essential oil, whose main components were limonene (33.72%), β-phellandrene (10.32%), sabinene (10.28%), β-pinene (6.99%), and α-pinene (5.44%). The essential oil exhibited moderate activity against Trichophyton rubrum (ATCC 28188) and Trichophyton mentagrophytes (ATCC 28185) [34].Leaves, stalksPain relief (joints, head, throat) and to treat gastrointestinal, skin (inflammation, bruises), renal-urological, and neurological problems. Rubbings are used to treat culture-related syndromes [18,22].
24Bidens andicola Kunth.Ñachic, nachagA new glycosyl chalcone ester, together with 7-O-glycosyl derivatives of flavonoids quercetin and quercetin 3-O-methyl ether have been isolated from the aerial parts. The sugar chains contained three or four sugar units, including β-D-glucopyranose, α-L-rhamnopyranose, and β-D-xylopyranose [35].Whole plant, leavesTo decrease disease relapses after recovery (locally known as recaída in Spanish) and pain relief (joints, head, throat) [4,18].
25Bidens pilosa L.Pacunga, amor seco, huichingueThe isolation of sterols, terpenoids, phenylpropanoids and hydrocarbons were reported [36].Whole plant, flowersTo decrease disease relapses after recovery (locally known as recaída), pain relief (at joints, head, throat), and as an anti-inflammatory [4,16].
26Bidens triplinervia KunthÑachigNo information is reported in literature.Whole plant without rootsIt is used orally to treat disorders of the gynecological system [21].
27Diplostephium oblanceolatum S. F. BlakeChuquiraguaNo information is reported in literature.LeavesTo heal body malaise [4].
28Gamochaeta americana (Mill.) Wedd.Rabo de danta, lechuguilla, lancetillaNo information is reported in literature.Whole plantTo cure the cold [4].
29Loricaria thuyoides (Lam.) Sch. Bip.Ushcu chaqui, pata de gallinazo, trensillaNo information is reported in literature.BranchesTo cure a restless and confused child and used as a tonic and in energy baths [4].
30Oritrophium peruvianum (Lam.) Cuatrec.Uña kushmaNo information is reported in literature.Whole plantTo heal liver and kidney inflammations [4].
31Vernonanthura patens (Kunth) H. Rob.JujumbaLupeol was identified in the callus extract [37].LeavesIt is used orally to treat disorders of the dermatological system [22].
BASELLACEAE
32Anredera ramosa (Moq.) Eliasson.LutuyuyuNo information is reported in literature.Whole plantIn baths for children, and to cure fever and headache [4].
BEGONIACEAE
33Begonia x tuberhybrida VossBegonia rosadaNo information is reported in literature.Flowers, petalsTo treat constipation [16]., and used as a sedative and tonic [20].
BETULACEAE
34Alnus acuminata KunthAlisoNo information is reported in literature.Leaves, budsTo cure headaches, and to treat bone fractures, sprains, and dislocations [4].
BRASSICACEAE
35Cardamine bonariensis Pers.BerroNo information is reported in literature.Whole plantIt is used orally to cure disorders of the circulatory system [21].
36Lepidium chichicara Desv.Chichira negraNo information is reported in literature.Whole plantTo decrease disease relapses after recovery (locally known as recaída in Spanish), to cure the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d [4].
37Lepidium thurberi WootonChichiraNo information is reported in literature.Plant without rootsIt is used orally to treat gynecological disorders [21].
BROMELIACEAE
38Tillandsia straminea KunthFlor de cristo, clavel del aireNo information is reported in literature.FlowersIt is used to treat neurological disorders [21].
CACTACEAE
39Cumulopuntia corotilla (K.Schum. ex Vaupel) E.F.AndersonCorotillaNo information is reported in literature.Whole plantPain relief (joints, head, throat), and to treat skin (inflammation, bruises) and neurological problems [18].
CAMPANULACEAE
40Siphocampylus scandens (Kunth) G. DonPena roja de monteNo information is reported in literature.FlowersTo treat neurological problems [4].
CANNACEAE
41Canna indica L.AchiraThe phytochemical analysis showed the presence of alkaloids, carbohydrates, proteins, flavonoids, terpenoids, cardiac glycosides, oils, steroids, tannins, saponins, anthocyanin pigments, phlobatinins, and other chemical compounds. The pharmacological studies showed that this plant exerted antibacterial, antiviral, anthelmintic, molluscicidal, anti-inflammatory, analgesic immunomodulatory, antioxidant, cytotoxic, hemostatic, hepatoprotective, anti-diarrheal, and other effects [38].LeavesIt is used to treat general neurological and respiratory problems [21,22].
42Canna coccinea Mill.PlatanilloNo information is reported in literature.Leaves, flowersPain relief (joints, head, throat) [18].
CAPPARACEAE
43Cleome longifolia C. Presl.Sacha yucaNo information is reported in literature.LeavesAntirheumatic [4].
CARICACEAE
44Carica pubescens Lenn’e & C. Koch cChihualcán, chamburoEthyl 3-O-β-D-glucopyranosyloxybutanoate, butyl 3-O-β-D-glucopyranosyloxybutanoate, and 3-oxo-octyl 1-O-β-D-glucopyranoside were isolated from fruit pulp by liquid chromatography on XAD [39].Fruits, leavesTo cure nerves, diarrhea, and dislocations [4].
COMBRETACEAE
45Conocarpus erectus L.BotoncilloThe extracts of leaves, shoot, bark, and fruit showed high antibacterial, antioxidant, and hepta-protective activities due to phenolic content. Tannins and flavonoids were the main constituents. Tannins exhibited high antibacterial activity [40].FlowersPain relief (joints, head, throat) [18].
COMMELINACEAE
46Callisia gracilis (Kunth) R. D. HuntCachorillo, cachurillo, calcec, calcha verde, calsugNo information is reported in literature.LeavesTo cure general gynecological disorders [21,22].
47Callisia repens (Jacq.) L.Calsi, calcha, calcec pequeñoNo information is reported in literature.LeavesTo prevent postpartum relapse [4,21].
CLUSIACEAE
48Vismia baccifera (L.) Triana & Planch.Achotillo, sangre de gallina, ushcaTriprenylated anthranoids ferruginins A and B, together with ferruantrone and harunganin, were isolated from the taxon V. baccifera var. ferruginea [41].LeavesTo treat skin conditions and fainting spells [19].
CUCURBITACEAE
49Cyclanthera pedata (L.) Schrad. cAchoccha, achogcha, caiguaFrom a methanolic extract of the fruits flavonoid glycosides were separated by HPLC and identified [42].FruitsTo cure earache and to decrease disease relapses after recovery (locally known as recaída in Spanish) [4].
EQUISETACEAE
50Equisetum bogotense Kunth.Cola de caballo, caballo chupaNo information is reported in literature.Leaves, stalks, whole plantAnti-inflammatory, antiseptic, depurative, diuretic, hepatic, febrifuge, anticancer, anticough, anti-parasite, and to cure kidney problems and liver inflammation [4,16,20,21].
51Equisetum giganteum L.Chupa caballo, cola de caballoCaffeic acid derivatives, flavonoids, and styrilpyrones were identified. The most abundant glycosylated flavonoids were kaempferol derivatives [43].Leaves, stalksPain relief (joints, head, throat), anti-inflammatory, and to treat gastrointestinal, respiratory, skin (inflammation, bruises), and renal-urological problems [9,21].
ERICACEAE
52Bejaria aestuans L.Payana, payamo, payamoNo information is reported in literature.FlowersTo treat abdominal pain related to menstruation [4,21].
53Bejaria subsessilis Benth.Pena de cerro, joyapaNo information is reported in literature.FlowersTo treat neurological problems [4].
54Cavendishia bracteata (Ruiz & Pav. ex J. St.-Hil.) HoeroldJoyapa, salapaNo information is reported in literature.FruitsFeed [4].
55Disterigma alaternoides (Kunth) Nied.Perlillas o joyapillaNo information is reported in literature.FruitsTo treat physical exhaustion [4].
56Gaultheria erecta Vent.Monte blancoNo information is reported in literature.FruitsTo treat physical exhaustion [4].
57Macleania rupestris (Kunth) A. C. Sm.Joyapa, salapa verdeNo information is reported in literature.FruitsAntidiarrheal and to treat general physical malaise [4].
ERIOCAULACEAE
58Paepalanthus ensifolius (Kunth) Kunth.CucharilloNo information is reported in literature.LeavesTo cure nerves [4].
59Eriocaulon microcephalum KunthMonte de seguroNo information is reported in literature.Whole plantTo wish good luck [4].
EUPHORBIACEAE
60Cnidoscolus aconitifolius (Mill.) I.M. JohnstChayaKaempferol, quercetin, and myricetin were the most abundant phenolic compounds found in an extract [44].LeavesTo treat general digestive and circulatory problems [21].
61Sapium glandulosum (L.) MorongCauchoLC-MS analysis of the latex revealed the presence of tigliane-type diterpenoids, especially 12-deoxyphorbol esters. Considering that 12-deoxytigliane diterpenes are described as antitumor and antiviral agents, these results indicated that this plant has pharmacological potential [45].LeavesAn infusion of burnt leaves is used to remove pimples from the skin. The leaves are used to cure fainting [19].
FABACEAE
62Acacia macracantha Humb. & Bonpl. ex Willd.Uña de gatoThe sugars identified in gum exudates of eight specimens of A. macracantha collected in Venezuela were galactose, arabinose, glucuronic acid, 4-O-methylglucuronic acid, and rhamnose [46].Leaves, flowersPain relief (joints, head, throat), anti-inflammatory, and to treat gastrointestinal, skin (inflammation, bruises), and renal-urological problems [18].
63Amicia glandulosa KunthNona, urusus, orozúsNo information is reported in literature.FlowersTo treat respiratory disorders [21].
64Desmodium molliculum (Kunth) DC.San Antonio, hierba de san Antonio, hierba del ángelNo information is reported in literature.Plant without rootsTo treat gynecological disorders [21].
65Myroxylon balsamum (L) HarmsChaquino(±)-7-Hydroxy-4′-methoxyisoflavanone, (±)-7,3′-dihydroxy-4′-methoxyisoflavanone, and 2-(2′,4′-dihydroxyphenyl)-5,6-dimethoxybenzofuran were isolated from this species [47].BarkTo treat digestive disorders [21].
66Myroxylon peruiferum L. f.ChaquinoTwo flavonoids, 2′-hydroxy-7,3′,4′-trimethoxyisoflavanone, and 2′-hydroxy-7,3′,4′-trimethoxyisoflavone were isolated from this species [48].BarkTo treat general respiratory disorders [22].
GENTIANACEAE
67Halenia weddelliana GilgTaruka cacho, cacho de venadoNo information is reported in literature.Whole plantIt helps maintain milk production in cattle [4].
68Macrocarpaea lenae J. R. GrantTabaco de cerroNo information is reported in literature.LeavesTo cure the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d [4].
GERANIACEAE
69Geranium diffusum Kunth.CáncerNo information is reported in literature.Whole plantTo cure gangrene and infections after birth [4].
JUGLANDACEAE
70Juglans neotropica Diels. cNogal, tocteNo information is reported in literature.LeavesIn postpartum baths, and to treat disorders of the circulatory system [4,21,22].
LAMIACEAE
71Hyptis purdiei Benth.Poleo de cerro, poleo negroNo information is reported in literature.BranchesThe plant is rubbed to treat culture-related syndromes [21].
72Minthostachys mollis (Kunth) Griseb.Poleo blanco, tipoThis aromatic shrub grows wild in the Andes above 1500 m of altitude from Venezuela to Argentina. Apparently, the composition of the essential oil of the plant grown in different geographical locations is not the same. A specimen from Argentina contained (-)-menthone as the main component; the oil from M. mollis collected in Ecuador contained neomenthol, (-)-menthone and menthol as the main constituents, while pulegone (75.2–79.3%) predominated among 28 components identified in the oil from Venezuela [49].BranchesTo cure the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d, for pain relief (joints, head, throat), anti-inflammatory, and to cure respiratory problems [4,18,21].
73Salvia leucocephala Kunth.Espliego, lavandaNo information is reported in literature.Whole plantIn postpartum baths [4].
74Salvia scutellarioides Kunth.(syn. S. palaefolia)Matico grande, salvia flor azulAlkaloids, triterpenes, and lignans were isolated this species [50].FlowersVaho de agua (supernatural disease caused by exposure to water-vapors from rivers, lakes, etc.) d [4,21].
LAURACEAE
75Persea americana Mill.Aguacate, paltaJuglanin and (+)-lyoniresinol were isolated from the leaves. Both compounds showed significant cell regeneration in neomycin-damaged hair cell without cellular toxicity [51].SeedsTo treat coups and hematomas [4].
LYCOPODIACEAE
76Huperzia sellifolia B. Øllg.Wuaminga coloradoNo information is reported in literature.Whole plantAmulet against evil eye and sorcery d [4].
77Lycopodium weberbaueri (Nessel). Wuaminga suco or grisNo information is reported in literature.Whole plantAmulet against evil eye and sorcery d [4].
78Huperzia austroecuadorica B. ØllgWuaminga verde (pequeña)No information is reported in literature.Whole plantAmulet against evil eye and sorcery d [4].
MELASTOMATACEAE
79Aciotis rubricaulis (Mart. ex DC.) TrianaChulcoNo information is reported in literature.Leaves, stalksPain relief (joints, head, throat), and to treat gastrointestinal and renal-urological problems [18].
80Brachyotum confertum (Bonpl.) Triana.Sacha zarcilloNo information is reported in literature.BranchesAgainst allergies [4].
81Tibouchina laxa (Desr.) Cogn.Dumaricgri, dumarín, chininingue, garra del diabloNo information is reported in literature.FlowersTo treat eye infections of guinea pigs (it has not been used for man) [4].
MELIACEAE
82Cedrela montana Moritz ex Turcz.Cedro andino, cedro blancoTwo oleanane-type triterpenes, 3-oxo-11a,12a-epoxy-oleanan-28,13b-olide and 3-oxo-olean-11-en-28,13b-olide, were isolated from the fruits and seeds. In addition, the known compounds oleanonic acid, a mixture of b-sitosterol and stigmasterol, and the limonoid photogedunin were isolated [52].LeavesIn postpartum baths and to relieve bone pain [4].
MORACEAE
83Ficus yoponensis Desv.SaumerioNo information is reported in literature.LatexThe latex has medicinal and technological uses and serves as an adhesive to bandage wounds. To treat kidney diseases and rheumatic pain, stomach pain and ulcers, varicose veins, hepatic inflammatory processes, and used as a vermifuge [19].
MYRICACEAE
84Morella parvifolia (Benth.) C.ParraLaurel, laurel de cera, laurel de monteThe main constituents of the essential oil analyzed by GC-MS were α-bisabolol (50.6–58.9%) and α-pinene (12.9–16.8%). No antibacterial activity was detected [53].BranchesTo treat general gynecological disorders [21].
85Morella pubescens (Humb. & Bonpl. Ex Willd.) WilburLaurel, laurel de ceraNo information is reported in literature.BranchesTo treat general gynecological disorders [21].
86Myrica parvifolia Benth.LaurelNo information is reported in literature.Branches, budsTo treat the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d, used against stomach colic, and to treat fainting during childbirth [4].
87Myrica pubescens Humb. & Bonpl. ex Willd.Millma laure (laurel lanudo)No information is reported in literature.LeavesTo treat the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d [4].
MYRTACEAE
88Psidium guajava L.GuayabaMeroterpenoids, a triterpenoid, terpenoid derivatives, and aromatic compounds, were isolated from the leaves. Meroterpenoids were evaluated for their antitumor and antifungal activities. Meroterpenoids psiguajadial D, guapsidial A, 4,5-diepipsidial A, guadial A, and guadial B were cytotoxic against five human tumor cell lines (HL-60, A-549, SMMC-7721, MCF-7, and SW-480). Guapsidial A was the most effective with an IC50 of 3.21–9.94 μmol·L−1 [54].FruitsIt is used orally to treat disorders of the digestive system [21].
ONAGRACEAE
89Fuchsia harlingii MunzPena, pena de cerroNo information is reported in literature.FlowersAnti-inflammatory and sedative remedy [20]. It is used orally to treat neurological disorders [21].
90Fuchsia hypoleuca I. M. JohnstSacha penaNo information is reported in literature.FlowersTo treat neurological disorders [4].
91Fuchsia loxensis KunthPena, pena rosadaNo information is reported in literature.FlowersCardiotonic, febrifuge and sedative remedy [20]. It is used orally to treat neurological disorders [21].
92Ludwigia nervosa (Poir.) H. HaraFlor de reina, mejorana de huertaNo information is reported in literature.FlowersAnti-inflammatory and sedative remedy [20]. It is used orally to treat gynecological, nervous, and dermatological disorders [21].
93Oenothera rosea L’Her. ex AitonShullo, shullu coloradoThe flavonoids: quercetrin and quercetin 3-O-β-D-allopyraNoside-3″,6″-diacetate were isolated from this plant [55].Flowers, leaves, stalksAnti-inflammatory, digestive, diuretic remedy, and to treat hepatic and kidney problems [16,21,22].
ORCHIDACEAE
94Epidendrum cochlidium Lindl.Flor de cristo anaranjadaNo information is reported in literature.FlowersTo treat neurological disorders [4].
95Epidendrum fimbriatum KunthFlor de cristo blanca, espírituNo information is reported in literature.FlowersTo treat internal tumors [4].
96Epidendrum jamiesonis Rchb.f.Flor de cristo violeta, maywaNo information is reported in literature.FlowersUsed as an anti-inflammatory, sedative, diuretic, and hepatic remedy [20]. It is used orally to treat dermatological disorders [21].
OXALIDACEAE
97Oxalis corniculata L.Chulco, trebol, trebol de huertaCorniculatin A was isolated from an EtOAc extract of the whole plant, together with luteolin, luteolin-7-O-β-D-glucoside, and β-sitosterol-3-O-β-D-glucoside [56].Whole plantAgainst scurvy (scorbutic tongue) [4].
98Oxalis peduncularis Kunth.Chulco amarilloNo information is reported in literature.Whole plantTo cure infection of the throat [4].
99Oxalis spiralis Ruiz & Pav. ex G. DonChulco, cañitas, trigonellaNo information is reported in literature.Whole plantTo cure infection of the throat [4].
PHYTOLACCACEAE
100Phytolacca americana L.Atuczara, hatun saraNo information is reported in literature.FruitsAgainst dandruff [4].
PIPERACEAE
101Peperomia blanda (Jacq.) KunthSacha congonaTetrahydrofuran lignans and flavones were isolated from the aerial parts. Some lignans exhibited high in vitro trypanocidal activity against epimastigotes of Trypanosoma cruzi strain Y. [57].Plant rootsIt is used orally to treat neurological disorders [21].
102Peperomia congona SodiroCongona, congona olorosaNo information is reported in literature.Leaves, flowers, stalksAnti-parasitic, antiperspirant, analgesic, cardiotonic, diuretic, hepatic, sedative, and to treat headache and insomnia [4].
103Peperomia galioides KunthTigresillo, sacha congona, congona de cerroEighty-four constituents were identified in the leaf essential oil analyzed by GC and GC-MS, which constituted more than 99% of the oil. The main components were safrole (42.3%) and epi-α-bisabolol (29.2%) [58].Whole plantAgainst aire de agua o vaho de agua (a supernatural disease caused by exposure to water-vapors from, for example, rivers, lakes, etc.) d [4,21].
104Peperomia ilaloensis SodiroCongona de castilla, congona negraNo information is reported in literature.Plant without rootsAs an analgesic and sedative remedy [20]. It is used orally to treat neurological and sensorial disorders [21].
105Peperomia peltigera C. DC. cPata conguyo, condorcolNo information is reported in literature.Fruit, leavesTo treat headache, respiratory, and neurological problems [4,18].
106Piper aduncum L.Cordoncillo, matico de monte, monte del soldadoBioactivity-guided fractionation of a leaf ethanolic extract afforded the dihydrochalcone adunchalcone, which was evaluated against promastigote forms of Leishmania amazonensis, L. braziliensis, L. shawi, and L. chagasi. The compound displayed EC50 values of 11.03, 26.70, and 11.26 μM, respectively, as well as selective indexes of 4.86, 2.01, 4.76, and 0.50, respectively. In contrast, adunchalcone exhibited weak activity against intracellular forms of L. amazonensis, compared to amphotericin B [59].Leaves, stalksTo treat infections of external wounds, gastrointestinal, respiratory, and skin (inflammation, bruises) problems, and an anti-inflammatory [4,18,21,22].
107Piper crassinervium KunthGuabiduca dulceBioactivity-guided fractionation of a leaf extract afforded three antifungal prenylated hydroquinones, together with two antifungal flavanones [60].LeavesAs an analgesic and antiseptic remedy, and against stomachache [20]. It is used orally to treat hormonal and respiratory disorders [21].
POLYGALACEAE
108Polygala paniculata L.Mentol, poligaga flores violetasThe xanthones 1-hydroxy-5-methoxy-2,3-methylenedioxy-xanthone and 1,5-dihydroxy-2,3-dimethoxyxanthone, together with the coumarin murragatin and the flavonol rutin were isolated from this plant [61].Whole plantIt is used orally to treat musculoskeletal disorders [21].
POLYGONACEAE
109Rumex tolimensis WeddTuruNo information is reported in literature.Stems, leavesTo promote hair growth and against dandruff [4].
POLYPODIACEAE
110Niphidium crassifolium (L) LellingerCalaguala, calawalaNo information is reported in literature.RootsIt is used orally to treat digestive and urological disorders [21].
PTERIADACEAE
111Adiantum poiretii Wikstr.Culantrillo pata negraNo information is reported in literature.Whole plant, leavesTo treat the cold [4]. It is used orally to treat gynecological disorders [21].
112Adiantum raddianum C. Presl.CulantrilloNo information is reported in literature.LeavesIt is used orally to treat gynecological and urological disorders [21].
113Cheilanthes bonariensis (Willd.) Proctor.Helecho congonaNo information is reported in literature.LeavesIt is used orally to treat gynecological disorders [21].
114Notholaena sulphurea (Cav.) J. Sm.Grano de oroThe main constituent of the yellow frond exudate of this fern was identified as 3,5,2′-trihydroxy-7-methoxy-8-acetoxy flavone. The 5,2′-dihydroxy-7,8-dimethoxy flavone was also found, along with some common flavonoids. The white form of the fern produced three dihydrochalcones that were accompanied by some kaempferol methyl ethers and apigenin-7-methyl ether. The 3-acetoxy as well as the 3-butyryloxy and the 4′-butyryloxy derivatives of 7-methyl aromadendrin were also identified [62].LeavesIt is used orally to treat gynecological disorders [21].
115Pityrogramma ebenea (L) Proctor.Doradilla plateada, luna plateada2′,6′-Dihydroxy-4,3′-dimethoxy-4′,5′-dioxymethylenedihydrochalcone was identified in the leaves [63].LeavesIt is used orally to treat gynecological disorders [21].
116Pityrogramma calomelanos (L.) LinkDoradilla del solAn isolated new pigment was assigned the structure of an 8- or 6-dihydrocinnamoyl-5,7-dihydroxy-4-phenyl-2H-1-benzopyran-2-one. From the same fern, two other phenyl-benzopyran-2-one-derivatives and a 2-phenyl-γ-pyron (ol)-ring derivative were isolated [64].LeavesIt is used orally to treat gynecological disorders [21].
117Trachypteris induta (Maxon) R.M. Tryon & A.F. TryonPata de gallinaNo information is reported in literature.LeavesIt is used orally to treat gynecological disorders [21].
RANUNCULACEAE
118Clematis haenkeana C. Presl.Zarzaparrilla rojaNo information is reported in literature.BudsTo cure sore teeth [4].
ROSACEAE
119Alchemilla aphanoides Mutis ex L f.SaucilloNo information is reported in literature.BranchesIt is used orally to treat neurological disorders [21].
120Hesperomeles obtusifolia (Pers.) LindlQuique, ceroteNo information is reported in literature.LeavesPain relief (joints, head, throat), and to cure gastrointestinal, respiratory, and renal-urological disorders [18].
121Margyricarpus pinnatus (Lam.) KuntzePerlilla, niguaThe main constituents of the leaf essential oil were limonene (57.8%) and α-pinene (9.7%), whereas sabinene (24.2%), limonene (9.1%), and pinocarvone (9.7%) were the main components of the fruit oil [65].Plant without rootsIt is used orally to treat respiratory and dermatological disorders [21].
122Prunus serotina Ehrh.CapulíBio-guided fractionation of a methanolic extract afforded 2,3-dihydro-5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one (naringenin, NGN), 3,4,5-trimethoxybenzoic acid, and 1,3,5-trimethoxybenzene. NGN exhibited in vitro activity, in a time-concentration-dependent manner (EC50 = 89.3 μM]. Furthermore, NGN at a dose of 376.1 μmol/kg, displayed in vivo efficacy against Taenia crassiceps cysts similar to albendazole at 188.4 μmol/kg [66].LeavesIn postpartum baths and to cure bone pain [4].
123Rubus urticifolius PoirMora silvestreNo information is reported in literature.Bud and flowersTo cure gangrene [4].
RUBIACEAE
124Cinchona pubescens VahlCascarilla, cascarilla rojaSeven known anthraquinones, alizarin-2-methylether, anthragallol-1,2-dimethylether, purpurin, purpurin-1-methylether, 1-hydroxy-2-hydroxymethylanthraquinone, 2-hydroxy-1,3,4-trimethoxyanthraquinone, and 2,5-(or 3,5-)dihydroxy-1,3,4-(or 1,2,4-)trimethoxyanthraquinone, together with five new anthraquinones, 2-hydroxy-1,3,4,6-(or 1,3,4,7-)tetramethoxyanthraquinone, 1,6-(or 1,7-)dihydroxy-2-methylanthraquinone, 5-hydroxypurpurin-1-methyl ether, 4,6-(or 4,7-)dihydroxy-2,7-(or 2,6-)dimethoxyanthraquinone, and 6,7-dihydroxy-1-methoxy-2-methylanthraquinone were isolated from callus cultures [67].BarkIt is used orally to treat respiratory problems [21,22].
SAPOTACEAE
125Pouteria caimito (Ruiz & Pav.) radlkCaimitoThree triterpenoids, Δ14–taraxene–3β–ol acetate, Δ14–taraxene–3–one, and Δ14–taraxene–3β–ol, together with β–sitosterol, were isolated from the bark [68].LeavesThe latex is used to remove subcutaneous larvae. The leaf infusion is used to treat skin infections [19].
SCROPHULARIACEAE
126Pedicularis incurva Benth.Pimpinela del cerroNo information is reported in literature.BranchesTo treat the cold [4].
SOLANACEAE
127Brugmansia candida Pers.Floripondio blanco, guando, guando blancoThe alkaloids, scopolamine and anisodamine, were produced in a modified bioreactor culture system [69].Flowers, leavesTo cure the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d [4,21,22].
128Brugmansia sanguinea (Ruiz & Pav.) D. DonFloripòndio rojo, guando rojoNo information is reported in literature.Flowers, leavesThe plant is rubbed to treat culture-related syndromes [21].
129Cestrum mariquitense KunthSauco negroNo information is reported in literature.BranchesIt is used to treat general disorders of the circulatory system [21].
130Cestrum racemosum Ruiz & PavSauco blancoNo information is reported in literature.BranchesIt is used to treat general culture-related syndromes [21,22].
131Cestrum sendtnerianum C. Mart.Sauco negroNo information is reported in literature.Leaves and flowersTo cure fever, headache, and postpartum relapses [4].
132Cyphomandra betacea (Cav.)Tomate de árbolNo information is reported in literature.FruitsTo cure throat infection [4].
133Lycopersicon hirsutum DunalMonte de guishco, monte de gallinazo, monte de ushcoNo information is reported in literature.Branches, leavesIt is used to treat general culture-related syndromes [22].
134Physalis peruviana L. cUvilla, uchuva, uvilla lanudaThe UPLC-ESI-MS/MS metabolic profile of an EtOAc extract of fruits cultivated in Egypt allowed the identification of several phenolic compounds. Moreover, the EtOAc extract showed remarkable α-amylase, β-glucosidase, and lipase inhibitory effects. In an in vivo antihyperglycemic test with streptozotocin (STZ)-induced diabetic rats, the EtOAc extract decreased the blood glucose level, prevented the reduction of body weight, and improved serum indicators of kidney injury [70].FruitsTo lower cholesterol [4].
135Solanum americanum Mill.Mortiño, hierba moraNo information is reported in literature.Leaves, fruitsAnti-inflammatory, analgesic, digestive, febrifuge, sedative, to treat respiratory diseases, the fever, the cold, pneumonia, internal infections, and kidney problems [4,16,21,22].
136Solanum juglandifolium DunalMaticoNo information is reported in literature.FlowersAgainst air wáter d [4].
137Solanum nigrescens M.Hierba moraThe antifungal activity of the extracts was attributed to the presence of a spirostanol glycoside, cantalasaponin-3 [71].LeavesPain relief (joints, head, throat), and to cure fever, gastrointestinal, respiratory, skin (inflammation, bruises), renal-urological, and anti-inflammatory diseases [4,21].
138Solanum oblongifolium Dunal, Solan.Turpe, tululuche, mata perroNo information is reported in literature.Branches, leavesTo cure the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) d, and dislocation [4].
139Solanum pimpinellifolium L.Monte de gallinazoNo information is reported in literature.BranchesTo treat general culture-related syndromes [21].
TILIACEAE
140Triumfetta althaeoides Lam.Abrojo, achotillo, cadilloNo information is reported in literature.LeavesTo treat liver and kidney inflammations [4,22].
141Triumfetta semitriloba Jacq.Abrojo, cadillo, monstranteNo information is reported in literature.LeavesTo treat general urological diseases [21].
VALERIANACEAE
142Valeriana pyramidalis KunthValerianaNo information is reported in literature.RootsIt is used orally to treat neurological problems [21].
143Valeriana microphylla KunthValeriana de cerroFive valepotriates, i.e., valtrate, isovaltrate, diavaltrate, acevaltrate, and didrovaltrate, together with nardostaquine, and two lignans, (+)-1-hydroxypiNoresiNol and pinoresinol were isolated and identified [72].RootsTo cure nerves [4].
VERBENACEAE
144Aloysia citriodora PaláuCedrónThe effect of continuous and pulsed ultrasound pre-treatments (15, 30, and 45 min), followed by conventional hydrodistillation, on the characteristics of isolated essential oils (EOs) from dried leaves of A. citriodora was evaluated for the first time. Moreover, the chemical composition, the antibacterial and antioxidant activities, as well as the contents in heavy metals (iron, copper, lead, arsenic, and cadmium) of the Eos were determined [73].LeavesPain relief (joints, head, throat), anti-inflammatory, and to treat gastrointestinal and respiratory problems [4].
145Aloysia triphylla (L’Hér.) Britton. *CedrónThe EO contained myrcenone (36.50%), α-thujone (13.10%), lippifoli-1(6)-en-5-one (8.87%), and limonene (6.87%) as the main components [74].Leaves, flowers, stalksAnti-inflammatory, antispasmodic, anti-neuralgic, analgesic, cardiotonic, digestive, stomach tonic, diuretic, and to cure the fever, headache, the cold, and colic [4,21,22].
146Phyla strigulosa (M. Martens & Galeotti) MoldenkeSistalgina/novalginaNo information is reported in literature.Whole plantTo treat stomachache [22].
147Verbena litoralis KunthVerbenaPhytochemical tests revealed the presence of iridoid glycosides, flavonoids, phenylpropanoid derivatives, phenylethanoid derivatives, cinnamic acid derivatives, and triterpenes. The extract was classified ‘safe’ (category 5), according to the OECD guidelines, in acute treatments [75].FlowersTo cure plagues and headache, body malaise, infection of the throat, respiratory and skin diseases (inflammation, bruises), flu, and pain relief (joints, head, throat) [4,18,21,22].
VIOLACEAE
148Viola arguta Willd. & Schult. ex Roem.Violeta de campo flor roja, pucangoNo information is reported in literature.FlowersTo cure nerve problems [4].
149Viola dombeyana DC.Violeta de campoNo information is reported in literature.FlowersTo cure nerve problems [4].
VISCACEAE
150Dendrophthora fastigiata Kuijt.Suelda pequeñaNo information is reported in literature.Whole plantTo treat fractured and dislocated bones [4].
151Phoradendron parietarioides Trel.Suelda grande, matapalo, solda-solda, sueldaNo information is reported in literature.Whole plantTo treat fractured and dislocated bones [4].
WINTERACEAE
152Drimys granadensis L. f.CascarillaA total of 85 components were identified in the leaf EO analyzed by GC and GC-MS. Germacrene D (14.7%), sclarene (9.5%), α-cadinol (7.3%), longiborneol acetate (6.3%), drimenol (4.2%), (Z)-β-ocimene (3, 4.2%), α-pinene (3.2%), and β-elemene (2.7%) were the main components of the oil. The EO was also tested against eight bacteria strains using the Kirby–Bauer disk-diffusion method. Most of the tested Gram-positive bacteria were susceptible to the oil, while the Gram-negative bacteria were not [76].Bark To cure sore teeth [4].
a The names of endemic plants have been underlined. b Data obtained by research groups working in countries other than Ecuador. c The plant is also cultivated. d A supernatural disease.
Table 2. Botanical and vernacular names, used part(s), and traditional uses of introduced medicinal plants.
Table 2. Botanical and vernacular names, used part(s), and traditional uses of introduced medicinal plants.
No.Botanical NameVernacular NameUsed Part(s) of the PlantTraditional Uses
AGAVACEAE
1Agave americana L. a,bCabuya, penco, chaguarqueroStemsTo heal bone fractures and dislocations [4].
AIZOACEAE
2Mesembryanthemum elegans L.Condorcoles pequeñoLeavesTo treat nerves and headache [4].
AMARANTHACEAE
3Aerva sanguinolenta (L.) Blume a,bEscancelWhole plant without rootsIt is used in topical applications, orally, and in poultices and washings to treat general disorders of the dermatological, digestive, gynecological, urinary, and nervous systems, and to cure renal problems and culture-related syndromes [18,21].
4Dysphania ambrosioides (L) Mosyakin & Clemants a,bPaicoBranchesBranches are rubbed to treat disorders of the digestive system and culture-related syndromes [21,22].
APIACEAE
5Anethum graveolens L. a,bEneldoWhole plantPain relief (joints, head, throat), and to treat gastrointestinal, respiratory, skin (inflammation, bruises), and renal-urological problems [18].
6Apium graveolens L. a,bApioLeaves, stalksPain relief (joints, head, throat), and to treat gastrointestinal, respiratory, and anti-inflammatory problems [18].
7Apium leptophyllum (Pers.) F. Muell. bCulantrillo blancoWhole plantIt is used to treat the cold [4].
8Coriandrum sativum L. a,bCilantro, culantroWhole plantTo treat the abdominal pain related to menstruation [4].
9Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P. Wilson bCulantrillo, cominilloBranchesIt is used orally to treat disorders of the digestive system [21].
10Daucus carota L. a,bZanahoriaLeavesThe juice is used to treat gastritis [4].
11Foeniculum vulgare Mill. a,bHinojo, eneldoLeaves, whole plantIt is used orally to treat disorders of the digestive system, and as an anti-inflammatory, a relaxant, against conjunctivitis, indigestion, gastritis, menstrual colic, diabetes, anticancer, and to increase the breast milk [4,16,21].
12Petroselinum crispum (Mill.) Fuss a,bPerejilWhole plant, leaves, stalksPain relief (joints, head, throat), and to treat gastrointestinal, respiratory, and neurological disorders [4,18].
13Pimpinella anisum L. bAnísSeedsPain relief (joints, head, throat), to treat gastrointestinal problems, and as a febrifuge [18].
ASPHODELACEAE
14Aloe vera (L.) Burm. f. bSábilaLeavesPain relief (joints, head, throat), and to treat gastrointestinal, respiratory, and renal-urological problems. Topical applications are used to treat skin problems [18,21,22].
ASTERACEAE
15Ageratum conyzoides L. bCanayuyo, pedorrera, hierba de chivoWhole plantTo heal gangrene and infections. It is also used orally to treat disorders of the digestive system [4,21].
16Cotula australis (Sieber ex Spreng.) Hook.f.Chichira sombreritoWhole plantTo decrease disease relapses after recovery (locally known as recaída in Spanish) [4].
17Cynara cardunculus L. a,bAlcachofaFruitsIt is used orally to treat disorders of the hormonal system [21].
18Matricaria chamomilla L. a,bManzanillaWhole plantPain relief (joints, head, throat), anti-inflammatory, to treat gastritis, gastrointestinal and respiratory problems, skin inflammation, and bruises [4,18,22].
19Matricaria recutita L. a,bManzanillaFlowers, leaves, stalksAnti-inflammatory, sedative, anti-flatulence, anthelmintic, analgesic, carminative, digestive, febrifuge, and used against cramps, insomnia, wounds, stomach pain, and burns. Used as a stimulant tonic. It is also used in gargles to treat disorders of the respiratory system [16,21].
20Sigesbeckia mandoni Schult. Bip.Sacha jícamaLeavesTo treat diarrhea in children from 1 to 6 months of age [4].
21Sonchus oleraceus L. a,bCerraja, serraja, CachicerrajaWhole plantTo heal body malaise, pain relief (joints, head, throat), and to treat gastrointestinal, respiratory, and renal-urological problems, skin inflammation, and bruises [4,18].
22Tagetes erecta L. a,bKillo rosa, flor de muerto, calendulaBranches, flowersAgainst vaho de agua c (a supernatural disease, presumed to be due to exposure to water-vapors). The plant is rubbed to heal culture-related syndromes [4,21].
23Tagetes patula L. a,bArrayosaFlowersThe plant is rubbed to heal culture-related syndromes [22].
24Tanacetum parthenium (L.) Sch. Bip. bSanta MaríaWhole plantTo cure fear in children [4,21,22].
25Taraxacum officinale F. H. Wigg. bDiente de león, taraxacoWhole plantTo cure gastritis and ulcer, and for pain relief (joints, head, throat). To treat gastrointestinal, respiratory, and renal-urological problems, skin inflammation, and bruises [4,18,21].
BALSAMINACEAE
26Impatiens balsamina L. a,bAmor constante, begoniaFlowersIn postpartum relapse [4].
BORAGINACEAE
27Borago officinalis L. a,bBorrajaFlowers, leaves, stalksAnti-inflammatory, anti-flu, expectorant, febrifuge, to enhance blood circulation, sudorific, astringent, diuretic, anti-hypercholesterolemic, analgesic, antidiarrheal, antitussive and emmenagogue; to treat hepatic pain, conjunctivitis, burnings, headache, and coughs; to decrease disease relapses after recovery (locally known as recaída in Spanish); to cure gastrointestinal, respiratory, and renal-urological problems [16,18,20,21,22].
28Symphytum officinale L. bConsuelda, sueldaLeavesIt is used to treat musculoskeletal disorders [21].
BRASSICACEAE
29Brassica oleracea ‘Acephala’ a,bCol silvestreStemsTo cure liver and kidney inflammations and infections, and postpartum infections [4].
30Matthiola incana (L.) R. Br. a,bAlhelí, alelíFlowersIt is used orally to treat neurological disorders [21].
31Nasturtium officinale R. Br. a,bBerro chico, berro negroLeaves, whole plantTo cure body malaise, headache, flu, and pneumonia [4].
32Rorippa nasturtium-aquaticum (L.) HayekBerroPlant without rootsIt is used orally to cure disorders of the circulatory system [21].
CACTACEAE
33Echinopsis pachanoi (Britton & Rose) Friedrich & G. D. RowleySan pedrillo, san Pedro, aguacollaStemsIn sorcery rituals c [4,22].
34Trichocereus macrogonus (Salm-Dyck) Riccob.San pedrilloWoodTo treat culture-related syndromes [21].
CAMPANULACEAE
35Lobelia cf. decurrens Cav. aCholo valiente, cararangoBranchesTo treat culture-related syndromes [21,22].
CAPRIFOLIACEAE
36Sambucus nigra L. a,bTilo, sauco tiloFlowersAnti-flu, to treat bronchitis, febrifuge, antidiarrheal, sedative, antitussive, to cure nerves, colds, coughs, and headaches [16,20,21,22].
CARYOPHYLLACEAE
37Dianthus caryophyllus L. a,bClavelFlowersAnti-inflammatory, anti-flu, analgesic, anticough, sedative, cardiotonic, and to cure nerves and stomach pain [4,16,20,21].
CHENOPODIACEAE
38Chenopodium album L. bPaico, palitaria, palitaria blancaBranches or budsTo treat blows, dislocations, and sprains [4,21].
39Chenopodium ambrosioides L. bPaicoWhole plantTo treat gallbladder stones and gastrointestinal problems [4,18].
40Tradescantia zebrina Hort. Ex Bosse bHoja de la plata, lazo de amor, oreja de tigre, zebrina, calchaWhole plantTo prevent postpartum relapse [4,21].
CRASSULACEAE
41Kalanchoe gastonis Bonnieri bDulcamara, mala madreLeavesTo treat general digestive disorders [21].
CUCURBITACEAE
42Cucurbita ficifolia Bouchè, Verh. a,bAlcayata, zamboWhole plantTo treat blows [4].
43Cucurbita maxima D’uchense ex Lam. a,bZapalloLeavesTo cure diarrhea in children from 1 to 6 months of age [4].
44Cucurbita pepo L. a,bSamboLatexTo treat general dermatological disorders [21].
CUPRESSACEAE
45Cupressus lusitanica Mill. a,bCiprésFruitsTo control baldness [4].
FABACEAE
46Medicago sativa L. a,bAlfalfaLeavesTo treat circulatory problems, especially lack of sensitivity at the body extremities (e.g., hands, feet, and/or toes) [4].
47Vicia faba L. a,bHabaLeavesTo treat headache [4].
GENTIANACEAE
48Centaurium erythraea Rafr. bPedorrera, canchalaguaWhole plantTo cure body malaise [4,21,22].
GERANIACEAE
49Erodium cf. cicutarium (L) L’Hér. Ex Aiton bAgujilla, aujillaBranchesIt is used orally to treat general disorders and culture-related syndromes [21].
50Pelargonium graveolens L’Hér. ex Aiton. a,bEsencia de rosaFlowers, leaves, stalksAnti-inflammatory, analgesic, febrifuge, antidiabetic, antidiarrheal, to treat gallbladder and liver problems, a digestive, to cure gastric ulcers, wounds, burns, respiratory diseases, jaundice, infertility, and urinary stones. It is also used to cure vaginal infections before and after childbirth [4,16,21,22].
51Pelargonium odoratissimum (L.) L’ Hér. a,bMalva olorosaFlowers, leaves, stalks, branchesAnti-inflammatory, analgesic, carminative and tonic, diuretic, antidiarrheal, and to cure colic, neurological and heart problems, and children’s colds [4,16,20,21,22].
52Pelargonium zonale (L.) L’Hér. aGeranioFlowersTo cure vaginal infections before and after childbirth [4,22].
JUGLANDACEAE
53Juglans nigra L. a,bNogalLeavesTo cure gastrointestinal and renal-urological problems [18].
LAMIACEAE
54Mentha piperita L. a,bMenta, menta negraLeaves, stalks, branchesAnalgesic, antidiarrheal, anti-flu, anti-inflammatory, antitussive, carminative, digestive, tonic, and against stomach pain, stomach colic, to cure indigestion and the cold; pain relief (joints, head, throat); to treat gastrointestinal, respiratory, skin (inflammation, bruises), and neurological problems [4,18,20,21,22].
55Mentha pulegium L. a,bMenta de castillaBranchesTo treat stomach colic, indigestion, and the cold [4].
56Mentha spicata L. a,bHierba buena, menta, menta negraLeavesAnti-inflammatory, anti-flu, analgesic, digestive, antitussive, carminative, febrifuge, to cure stomach colic and the cold; pain relief (joints, head, throat); to treat gastrointestinal, respiratory, and renal-urological problems [4,18,20,21,22].
57Ocimum basilicum L. a,bAlbahaca, albahaca blancaFlower, leavesAnti-inflammatory, antispasmodic, anti-flatulence, analgesic, febrifuge, digestive, stimulant of lactation, relaxant, to treat headache, coughs, heart problems, nerves, gastritis, high blood pressure, internal infections, pain relief (joints, head, throat); to treat gastrointestinal and skin (inflammation, bruises) problems [16,18,21].
58Origanum majorana L. a,bMejoranaLeavesPain relief (joints, head, throat) [18,22].
59Origanum x majoricum Camb. a,bOrégano, oregano de castillaWhole plant without rootsTo treat digestive problems [21].
60Origanum vulgare L. a,bOréganoWhole plantPain relief (joints, head, throat), and to treat gastrointestinal and renal-urological problems [4,22].
61Plectranthus unguentarius CoddOreganón, orégano grandeLeavesIt is used orally to treat digestive problems [21].
62Rosmarinus officinalis L. a,bRomeroBranches, whole plantTo cure the fever or the cold caused by cold air or strong winds (locally known as mal aire (bad air) c. Pain relief (joints, head, throat); to cure gastrointestinal, skin (inflammation, bruises), and neurological problems [4,18,21,22].
63Salvia tiliifolia Vahl. bSanta MaríaWhole plant without rootsThe plant is rubbed to treat culture-related syndromes [21].
64Thymus vulgaris L. a,bTomilloBranches, leavesTo cure indigestion, gastrointestinal, and renal-urological problems; pain relief (joints, head, throat) [4,18,21].
LAURACEAE
65Cinnamomum verum J. Presl bCanelaBarkPain relief (joints, head, throat), and to treat gastrointestinal and respiratory problems [18].
LILIACEAE (AMARYLLIDACEAE)
66Allium sativum L. a,bAjoGarlic, bulbsTo cure coughs; pain relief (joints, head, throat), and to treat gastrointestinal and respiratory problems [4,18].
LINACEAE
67Linum usitatissimum L. a,bLinazaSeeds, leaves, stalkIt is used to treat general disorders of the digestive and urological systems [15,22]. Anti–inflammatory, digestive, hepatic, diuretic, to treat stomachache and kidney problems, inflammation of liver and kidney, and gastrointestinal and respiratory problems [4,16,18,20].
MALVACEAE
68Alcea rosea L. a,bMalva goma, malva rosaFlowers, barkTo treat liver and kidney pain, and used as a diuretic, analgesic, and depurative [4,20,21].
69Corchorus siliquosus LWhole plantTo treat general digestive disorders [22].
70Lavatera arborea L. aMalva, puka malvaFlowersTo treat liver and kidney inflammations [4].
71Malva arborea (L.) Webb & Berthel. aMalva altea, malva blanca, malva altaFlowersAnti-inflammatory, antidiarrheal, febrifuge, depurative, diuretic, tonic, digestive, to treat obesity, constipation, and insect bites [4,21].
72Malva parviflora L. a,bMalva blancaBranches, flowersTo treat general gynecological and urological disorders [21].
MORACEAE
73Ficus carica L. a,bHigo, breva, higueraLeavesIt is used orally to treat gynecological disorders [21].
MYRTACEAE
74Corymbia citriodora (Hook.) K.D. Hill & LAS. Johnson a,bEucalipto oloroso, eucalipto aromáticoBranchesIt is used for inhalations to treat disorders of the respiratory system [21].
75Myrtus communis L. bArrayánLeaves, fruitsTo treat fever, gastrointestinal, respiratory, and skin (inflammation, bruises) problems [18].
76Syzygium aromaticum L. a,bClavo de olorFlower buds, pedunclesPain relief (joints, head, throat), and to cure gastrointestinal problems [18].
OLEACEAE
77Jasminum grandiflorum L. a,bJazmínFlowersTo treat neurological disorders [22].
ONAGRACEAE
78Fuchsia magellanica Lam. a,bPena-pena, pena, pena morada, zarcilloFlowersSedative, disinfectant, wound healer, and relaxant [19,20,21].
PINACEAE
79Pinus radiata D. Don a,bPinoFruitsAgainst asthma [4].
PLANTAGINACEAE
80Plantago major L. a,bLlanténWhole plant, leavesAnti-inflammatory, antihemorrhagic, digestive, wound healer, diuretic, to treat liver problems, insomnia, insect bites, liver and kidney inflammation; pain relief (joints, head, throat), and for gastrointestinal, respiratory, skin (inflammation, bruises), renal-urological, and neurological problems [4,18,21,22].
POACEAE
81Cynodon dactylon (L.) Pers. bGrama dulce, pajaWhole plant without rootsIt is used orally to treat urological and gynecological disorders [21].
82Cymbopogon citratus (DC.) Stapf. a,bHierba Luisa, limonariaLeavesAnti-flatulence, analgesic, digestive, sedative, expectorant, spasmolytic, relaxant and diuretic, anti-inflammatory, to treat high pressure, nerves, gastritis, diarrhea, jaundice, insomnia and the cold, gastrointestinal, respiratory, skin (inflammation, bruises), and neurological problems; pain relief (joints, head, throat) [14,21,22].
83Zea mays L. a,bMaíz (pelo de choclo)Hair of dried maize, flowersAgainst diarrhea and general malaise; pain relief (joints, head, throat), anti-inflammatory; to treat gastrointestinal, respiratory, renal-urological, and neurological problems, skin inflammation, and bruises [4,18,21,22].
POLYGONACEAE
84Rumex obtusifolius L. bLengua de vaca, sacha-gulaLeaves, flowersPain relief (joints, head, throat), and to cure skin inflammation and bruises; anti-inflammatory [18].
ROSACEAE
85Eriobotrya japonica (Thunb.) Lindl. a,bNíspero, míspero, níspero del japónLeavesIt is used orally to treat urinary disorders [21,22].
86Poterium sanguisorba L. bPimpinelaWhole plantTo treat neurological problems [4].
87Rosa x alba L. a,bRosa blancaFlowersTo treat infections and flu [22].
88Rosa centifolia L.Rosa rojaFlowersTo treat neurological problems [4,22].
89Rosa cymosa Tratt. a,bRosaFlowersIt is used orally to treat gynecological and urological disorders [21].
90Sanguisorba minor subsp. Muricata (Bonnier & Layens) Briq a,bPimpinelaLeavesIt is used orally to treat neurological problems [21].
RUTACEAE
91Citrus x junos Siebold ex Tanaka a,bNaranja agriaFruitsIt is used orally to treat dermatological problems [21].
92Citrus limetta Risso a,bLima dulceFruitsTo prevent high blood pressure [22].
93Citrus x limonum Risso a,bLimónSeedsIt is used orally to treat dental pain [22].
94Citrus sinensis (L.) Osbeck. a,bHojas de naranjaLeavesAntispasmodic, relaxant, antidiarrheal; used as hair tonic; used to treat insomnia, the cold and kidney problems [16].
95Ruta graveolens L. a,bRudaBranches, flowers, whole plantTo treat headaches, bad air c, fainting during childbirth, gastrointestinal and neurological problems; pain relief (joints, head, throat) [4,18,21,22].
SIMAROUBACEAE
96Castela tortuosa Liebm. bHierba de perroLeaves, flowersPain relief (joints, head, throat), and to treat gastrointestinal problems [18].
TILIACEAE
97Tilia platyphyllos Scop. aTiloLeaves, flowersTo cure respiratory, neurological, and reproductive diseases; anti-inflammatory [18].
URTICACEAE
98Urtica dioica L. bOrtiga, ortiga de monteWhole plantPain relief (joints, head, throat), and to cure gastrointestinal, neurological diseases [18,21].
99Urtica urens L. bChine, chini, ortiga comúnWhole plantTo treat intestinal infection and blows [4,21].
VALERIANACEAE
100Valeriana officinalis L. bValeriana, guasillaLeavesTo cure gastrointestinal and neurological diseases [4].
VERBENACEAE
101Phyla dulcis (Trevir.) Moldenke a,bBuscapinaWhole plantTo treat stomachache [22].
102Phyla scaberrima (A. Juss. Ex Pers.) Moldenke bBuscapina, novalginaWhole plant without rootsIt is used orally to treat digestive problems [4,21].
VIOLACEAE
103Viola odorata L. a,bVioleta, violeta de huerta, violeta de jardínFlowersTo cure coughs [4,21,22].
104Viola tricolor L. bPensamientoFlowersAnalgesic, antidiarrheal, anti-flu, anti-inflammatory, antiseptic, diuretic, febrifuge; to cure the hoarseness and headache; to treat kidney, skin, heart, and nerve problems [4,18,21].
ZINGIBERACEAE
105Hedychium coronarium J.Köning a,bJazmín de río, caña agriaStemsIt is used orally to treat problems of the urinary system [21,22].
a The plant is also cultivated. b The phytochemistry and biological activities of the plant have already been investigated by scholars working in countries other than Ecuador. c A supernatural disease.
The fact that Asteraceae (Compositae) is the family with the highest number of medicinal taxa is not unexpected because it is one of the largest flowering plant families, consisting of over 32,000 known species in over 1900 genera distributed worldwide [23,24]. All species are good sources of inulin, a natural polysaccharide with strong prebiotic properties. They have also demonstrated high antioxidant, anti-inflammatory, and antimicrobial activities, as well as diuretic and wound-healing properties. A few taxa also contain cytotoxic metabolites. These pharmacological effects are attributed to a range of phytochemical compounds, including polyphenols, phenolic acids, flavonoids, polyenes, alkaloids, sesquiterpene lactones, diterpenoids, triterpenes, and essential oils [77]. Species belonging to Lamiaceae are known for the contents of aromatic volatile compounds, whereas the characteristic chemical constituents of Solanaceae species are biologically active alkaloids of the steroidal, tropane, and nicotine types [77].
Some species belonging to the Lycopodiaceae family are traditionally used to treat supernatural diseases and to perform religious rituals due to their psychoactive effects [78]. The extracts contain alkaloids of the Lycopodium type and exhibited an interesting cholinesterase activity [3]. Therefore, related Lycopodiaceae species reported in Table 1, such as H. sellifolia, L. weberbaueri, and H. austroecuadorica deserve to be studied from a phytochemical and pharmacological point of view, especially in the search for natural remedies for age-related neurodegenerative diseases [79]. In this context, it is worthwhile to note that a few endemic species belonging to the genus Fuchsia, such as F. harlingii, F. hypoleuca, and F. loxensis, which are used in the traditional medicine for neurological treatments, have not yet received adequate scientific attention by scholars of natural products.
Other still uninvestigated native plants which might offer interesting research opportunities belong, inter alia, to the families of Asteraceae, Fabaceae, Ericaceae, Orchidaceae, Piperaceae, and Solanaceae, which are well known sources of specialized metabolites with various chemical structures and different biological activities [77].
On the other hand, several species of the genus Amaranthus are traditionally cultivated in Central and South America, where local people use seeds or leaves as food and herbal remedies [80]. Therefore, the traditional uses of A. caudatus, A. cruentus, A. hybridus, and A. quitensis deserve to be validated with scientific evidence to enhance their sustainable use as a food supplement or in phytopharmaceutical products. Another plant of promising scientific and practical interest is Phyla strigulosa (family Verbenaceae). In fact, in preliminary investigations, we have found that it can be used to prepare non-caloric sweeteners.
The plants reported in Table 1 and Table 2 are most widely used as analgesic, antidiarrheal, anti-flu, anti-inflammatory, antitussive, carminative, sedative, digestive, tonic, and pain relief (joints, head, throat, stomach) remedies, against colic, to cure the cold, and to treat gastrointestinal, respiratory, dermatological, renal-urological, gynecological, and neurological problems. The frequency of these uses clearly reflects the spread of these diseases in Indigenous communities. In this regard, it is important to highlight the limited number of plants used against cancer, while it is quite stunning to note the large number of species used to cure nervous and general neurological problems. It would be interesting to investigate the causes of such diseases in a relatively poor country such as Ecuador, because these diseases are usually considered typical of affluent societies.
Several plants listed in Table 1 and Table 2, which belong to different genera and even to different families, are often used to treat the same disease or the same group of diseases. This finding may suggest that compounds with different chemical structures display the same bioactivity or that compounds of the same type occur in the different species.
Most plants reported in this review are used against well-defined pathologies, for which appropriate in vitro biological tests and even clinical trials can be executed to confirm the effectiveness of the positive effects and to direct the isolation of bioactive compounds. Other plants are, instead, used against ill-defined diseases, such as those employed to cure ‘culture-related syndromes’, or ‘a restless and confused child’, or a generic ‘disease of the body’. Even harder to decipher, under the perspective of western medicine, are the so-called supernatural and magical diseases such as the ‘mal aire (bad air)’, ‘air water’ or ‘evil eye’. However, these beliefs are part of the cultural heritage of this population and are, therefore, of great anthropological interest.

4. Conclusions

We believe that a critical evaluation of the ethnobotanical and ethnopharmacological information contained in this review may give several opportunities to develop innovative research and to design practical applications of several traditional plants of Ecuador, with benefits not only to the Indigenous communities but to the entire population of the country. Introduced medicinal plants (Table 2), whose chemical components and biological activities are usually known, have the potential of immediate practical applications. Allium sativum, Mentha piperita, and Aloe vera are representative examples of plants with these characteristics. On the other hand, endemic medicinal species are of primary importance for Ecuador, which is the only owner in the world of unique botanical resources that must therefore be preserved with extreme care. Moreover, the phytochemistry and biological activities of little-investigated endemic plants deserve to be investigated for their potential as new natural sources of isolated compounds or extracts with therapeutic interest. Examples of plants endemic to Ecuador, which have already aroused great scientific interest, are: Lepichinia mutica Benth. (Lamiaceae), which produces appreciable amounts of carnosol, a compound with potent anti-BuChE activity [81]; Gynoxys miniphylla Cuatrec. (Asteraceae), whose EO exhibits promising cholinergic, antiviral, and analgesic effects [82], and Clinopodium tomentosum (Kunth) Govaerts (Lamiaceae), whose leaf extract influences in vitro cell proliferation and angiogenesis on primary cultures of porcine aortic endothelial cells [83].

Author Contributions

Conceptualization, C.A. and J.R.; writing—original draft preparation, C.A., J.R., and G.V.; literature retrieval, J.R. and C.A.; review supervision and editing, G.V. All authors have read and agreed to the published version of the manuscript.

Funding

This research was funded by the Universidad Técnica Particular de Loja by paying the article publication fees.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Not applicable.

Conflicts of Interest

The authors declare no conflict of interest.

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Figure 1. Provinces of Ecuador.
Figure 1. Provinces of Ecuador.
Plants 11 01590 g001
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Armijos, C.; Ramírez, J.; Vidari, G. Poorly Investigated Ecuadorian Medicinal Plants. Plants 2022, 11, 1590. https://doi.org/10.3390/plants11121590

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Armijos C, Ramírez J, Vidari G. Poorly Investigated Ecuadorian Medicinal Plants. Plants. 2022; 11(12):1590. https://doi.org/10.3390/plants11121590

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Armijos, Chabaco, Jorge Ramírez, and Giovanni Vidari. 2022. "Poorly Investigated Ecuadorian Medicinal Plants" Plants 11, no. 12: 1590. https://doi.org/10.3390/plants11121590

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