Plant folk medicines for gastrointestinal disorders among the main tribes of Sonora, Mexico

Plant folk medicines for gastrointestinal disorders among the main tribes of Sonora, Mexico

Fitoterapia 79 (2008) 132 – 141 www.elsevier.com/locate/fitote Short report (Ethno) Plant folk medicines for gastrointestinal disorders among the ma...

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Fitoterapia 79 (2008) 132 – 141 www.elsevier.com/locate/fitote

Short report (Ethno)

Plant folk medicines for gastrointestinal disorders among the main tribes of Sonora, Mexico S.F. Moreno-Salazar a,⁎, R.E. Robles-Zepeda b , D.E. Johnson a,✠ b

a Departamento de Agricultura y Ganadería de la Universidad de Sonora, Blvd. Rosales y Niños Héroes, Hermosillo, Sonora, Mexico Departamento de Ciencias Químico Biológicas de la Universidad de Sonora, Blvd. Rosales y Niños Héroes Hermosillo, Sonora, Mexico

Received 7 May 2005; accepted 20 July 2007 Available online 9 August 2007

Abstract This paper describes the herbal remedies used by ethnic groups from Sonora, Mexico, for treatment of gastrointestinal diseases. Twelve types of these illnesses are cured using 85 different species which belong to 38 families. Thirty nine spp. are used to treat diarrhea, 28 for stomach-ache, 12 for constipation, 9 for intestinal parasites, 6 for indigestion, 3 for stomach or intestinal cancer, 3 for stomach inflammation and only 1 to treat gastrointestinal sicknesses, ulcers, gastritis, colitis and colic. Regarding the use of species of plant per ethnic group the following was observed: Mayo 47; Seri, 27; Yaqui, 13; Guarijio, 12, Pima, 5 and Papago, 3. The plants are used by two or more tribes, for the same or different illness but always related to the gastrointestinal system. © 2007 Elsevier B.V. All rights reserved. Keywords: Medicinal plants; Traditional Mexican medicine; Gastrointestinal diseases

Study area The study region is located in the State of Sonora, in Northwestern Mexico. The geographical coordinates of the main ethnic groups are: Yaqui (110° 23′ W; 27° 39′ N), Mayo (109° 30′ W; 26° 54′ N), Pima (108° 47′ W; 28° 24′ N), Seri (112° 10′ W; 28° 59′ N), Papago (112° 57′ W; 31° 52′N) and Guarijio (108° 50′ W; 27° 38′ N). Population The tribes considered in this study were: Yaqui, Mayo, Pima, Guarijio, Papago and Seri, and include about 117 people. They are constituted as entities with their own culture and territory well defined. The six tribes are bilingual. In addition to Spanish they have their own language. In general, only old men and small children are monolingual. The Mayo, Yaqui, Guarijio, Pima and Papago languages are similar, belong to the family taracahíta of the trunks yuto-nahua and yuto-azteca, both derived from Aztec culture. ⁎ Corresponding author. Fax: +52 662-2138006. E-mail address: [email protected] (S.F. Moreno-Salazar). ✠ Deceased. 0367-326X/$ - see front matter © 2007 Elsevier B.V. All rights reserved. doi:10.1016/j.fitote.2007.07.009

Table 1 Plants used by ethnic groups of Sonora, Mexico to heal gastrointestinal diseases a Local names

Parts used

Ailments treated

Preparations

Modes of use

Tribal affiliation

Citations Citations (n) (%)

Agave schotii Engelm. (00151)

Agavaceae

Maguey amole

Root and leaves

Constipation

Drink the tea as daily drinking water

Seri

1

33

Agave shrevei Gentry (04132)

Agavaceae

Maguey, mezcal del monte

Leaves

Constipation

The roots and the leaves are boiled in water like tea The leaves are roasted in a pit, then the sap is extracted and boiled.

Mayo

1

33

Amaranthus hibridus L. (no voucher)

Amaranthaceae

Bledo, quelite

Mayo

1

66

Amaranthus palmeri S. Wats (02160)

Amaranthaceae

Asclepias albicans S. Wats (no voucher) Ambrosia confertiflora DC., (00081)

Asclepiadaceae

Leaves and branches Bledo, quelite Leaves and branches Júmate, yumate Roots

Asteraceae

Estafiate

Leaves

Stomach-ache and inflammation

Baccharis glutinosa Pers., (03950)

Asteraceae

Leaves

Stomach-ache

Eupatorium collinum DC., (04212)

Asteraceae

Batamote, jarilla, hierba del pasmo, bachomo Hierba del ángel

Intestinal parasites

Gnaphalium leucocephalum A. Gray, (00400) Gnaphalium oxyphyllum DC., (no voucher)

Asteraceae

Talampacate

Branches and leaves Whole plant

Asteraceae

Gordolobo

Stomach-ache

A tea is prepared from the flowers and stems

Asteraceae

Arnica amarilla, gordolobo

Flowers and stems Branches

Stomach-ache and ulcer

Prepare a tea with the branches

Heterotheca subaxillaris (Lam.) Britt. and Rusby, (02654)

Diarrhea

Prepare a tea from the leaves and the branches

One cup of sap is taken during fasting (men for 3 days and women for 4 days) Drink the tea as daily drinking water

Diarrhea

Prepare a tea from the leaves and the branches

Drink the tea as daily drinking water

Mayo

1

33

Intestinal parasites

A tea prepared with the plant roots is recommended For stomach-ache, the young leaves are mashed until they turn into little balls which are then swallowed with water. For stomach inflammation a cup of tea is prepared with young leaves The leaves are ground and turned into small balls similar to capsule size and swallowed. Prepare an infusion with the branches and the leaves Any part of the plant is boiled in water

Drink the tea as daily drinking water

Mayo

2

66

In both diseases, drink a cup of the extract, three times daily until alleviation.

Mayo, Yaqui 6

100

For children a cup of tea. Adults drink three times daily until alleviation Drink the tea as daily drinking water

Yaqui

3

100

Mayo

2

66

It is drank as tea or as normal drinking water Drink as tea

Mayo

3

100

Mayo, Yaqui

6

100

Pima

2

66

Indigestion

Drink the tea three times daily until alleviation

(continued on next page)

133

Family

S.F. Moreno-Salazar et al. / Fitoterapia 79 (2008) 132–141

Botanical name and voucher specimen

134

Table 1 (continued ) Family

Local names

Parts used

Ailments treated

Hymenoclea monogyra Torr. and Gray, (00228) Milleria quinqueflora L., (01424) Parthenium tomentosum Greene, (02875)

Asteraceae

Jécota, técota

Branches

Stomach-ache

Asteraceae

Cocolmeca

Roots

Asteraceae

Ocotillo

Stems

Porophyllum gracile Benth., (04141) Tagetes filifolia Lag., (04678)

Asteraceae

Roots

Diarrhea

Asteraceae

Hierba del venado Anisillo

Branches

Stomach-ache

Zinnia acerosa (DC.) A. Gray, (01038) Begonia portillana S. Wats, (no voucher) Bignonia unguis-cati L., (no voucher)

Asteraceae

Zinia

Diarrhea

Begoniaceae

Chocopala

Bignoniaceae

Hiedra, mano de cachora

Heliotropium curassavicum L., (00397) Tiquilia palmeri (Gray) A. Richardson, (06919) Rorippa nasturiumaquaticum L, Schinz and Thell., (05243) Opuntia acantocarpa Engelm. and Bigelow, (no voucher) Opuntia fulgida cv. fulgida Engelm., (01678)

Boraginaceae

Cola de mico, cola de alacrán Hierba de la virgen Berro

Whole plant Root and fruits Branches and leaves Branches

Indigestion

Root

Stomach-ache

Leaves

Constipation

Opuntia reflexispina Wiggins and Rollins, (no voucher) Opuntia thurberi Engelm., (04243) Pachycereus pectinaboriginum

Boraginaceae Brassicaceae

Preparations

Prepare a tea with the branches Stomach inflammation Prepare a tea with the roots Stomach-ache Bark of the stems are used to make a tea Prepare a tea 23with the roots Prepare a tea with the branches

Prepare a infusion with any part of plant Indigestion Prepare a tea with roots and fruits Intestinal inflammation Prepare a tea with the branches and the leaves

Cactaceae

Nopal silvestre, Fruits choya

Diarrhea

Cactaceae

Choya

Fruit shell Persistent diarrhea

Cactaceae

Choya

Roots

Diarrhea

Cactaceae

Choya

Cactaceae

Echo

Roots and fruits Roots and fruits

Diarrhea, stomach-ache Colic, gastritis, ulcer, colitis

Modes of use

Tribal affiliation

Citations Citations (n) (%)

Drink the tea three times daily until alleviation Drink the tea while the inflammation persist Drink a cup twice a day, in the morning and another at night Drink the tea while the diarrhea persist A cup of tea is prescribed when the pain is present and before sleeping Drink tea while the diarrhea persist Drink tea while the indigestion persist Drink tea twice daily until alleviation

Seri

3

100

Mayo

3

100

Mayo

3

100

Seri

2

66

Pima

3

100

Pima

1

33

Guarijio

2

66

Mayo

1

33

Prepare a tea with the branches Prepare a tea with the main part of the root The leaves are boiled in water and the tea is used

Drink a tea while the indigestion persist Drink tea twice daily until alleviation Drink daily to induce defecation

Mayo

2

66

Seri

2

66

Mayo

3

100

The fruits are roasted

Eat while the diarrhea persist

Mayo

3

100

The meaty shell of the fruit is boiled and eaten with some pulp and seeds to give it a more acid taste The roots are roasted in hot ashes

Eat while the diarrhea persist

Seri

3

100

Eat while the diarrhea persist

Seri

3

100

The roots or fruits are roasted in hot ashes The roots and the fruits are boiled in water

Eat while the diarrhea or Mayo 3 stomach-ache persist To drink daily Mayo, Yaqui 5 as drinking water

100 83

S.F. Moreno-Salazar et al. / Fitoterapia 79 (2008) 132–141

Botanical name and voucher specimen

(Engelm.) Britt at Rose, (no voucher) Pereskiopsis aquosa (Weber) Britt. and Rose, (no voucher)

The fruit are boiled in water

Eat while the diarrhea persist

Mayo

2

66

Stomach-ache

Prepare a tea with leaves and branches

Drink daily as drinking water

Mayo, Seri

6

100

Constipation

Prepare a tea with the roots

Drink a cup twice a day

Seri

3

100

Seeds

Stomach-ache

1

33

Leaves

Stomach-ache

Seri

3

100

Chenopodiaceae Epazote

Branches and roots

Intestinal parasites

Mayo, Yaqui 6

100

Combretaceae

Mangle blanco

Bark

Diarrhea

Yaqui

2

66

Cyperaceae

Coquillo

Tubers

Mayo

2

66

Euphorbiaceae

Seri

1

33

Euphorbiaceae

Hierba del Branches cáncer Croton, ocotillo Branches

Drink daily as drinking water Drink a cup of tea until for induce the vomit Drink the liquid as daily drinking water for the necessary days Drink daily as drinking water Use as daily drinking water Tea is used as every day drinking water Tea is used as every day drinking water

Seri

Chenopodiaceae Chamizo

The seeds are put in water Prepare a tea with the leaves Boil branches and roots in water

Guarijio, Mayo

6

100

Croton corymbulosus Engelm., (no voucher)

Euphorbiaceae

Encinilla

Leaves

Drink tea while the ache persist

Mayo

3

100

Croton fragiles H.B.K., (no voucher) Euphorbia hirta L., (04028) Euphorbia leucophylla Benth., (03792)

Euphorbiaceae

Vara blanca

Bark

Guarijio

3

100

Euphorbiaceae

Picachali

Leaves

Mayo

3

100

Euphorbiaceae

Golondrina

Whole plant

The infusion is drunk while diarrhea persist The tea is used as every day drinking water Tea is used as every day drinking water

Seri

3

100

Euphorbiaceae

Golondrina

Roots

Seri

3

100

Euphorbiaceae

Candelilla china

Sap

Senna covesii (Gray) Irwin and Barneby, (01226) Cleome tenuis (S. Wats), (03987) Atriplex canescens (Pursh) Nutt., (00444) Chenopodium ambrosioides L., (01577) Laguncularia racemosa L. Gaertn., (02199) Cyperus esculentus L., (02519) Acalypha californica Benth., (00078) Croton alamosanum Rose, (01649)

Euphorbia misera Benth, (03660) Euphorbia plicata S. Wats, (no voucher)

Tuna de agua

Fruits

Caesalpiniaceae Bagote, retama, Leaves guacoporo and branches Caesalpiniaceae Dais, Rosa Roots María Capparidaceae

Cleome

The tea extracted from the bark is recommended Stomach-ache and Put ground tubers in diarrhea in children water Stomach and The branches are intestinal cancer macerated in hot water Stomach and The branches are intestinal cancer cut in pieces and boiled in water Stomach-ache Tea prepared from the leaves is used to alleviate stomach-ache Diarrhea Prepare a infusion with the bark Stomach-ache, diarrhea, Prepare a tea with the intestinal parasites leaves Stomach-ache Any part of the plant is effective against stomach-ache administered in the form of a tea Stomach-ache Prepare a root tea Indigestion, intestinal parasites

Some drops of sap are diluted in water

Drink tea while the ache persist The liquid is used as every day drinking water

Mayo, Yaqui 2

S.F. Moreno-Salazar et al. / Fitoterapia 79 (2008) 132–141

Diarrhea

Parkinsonia aculeata L., (01494)

Cactaceae

33

135

(continued on next page)

136

Table 1 (continued ) Family

Local names

Parts used

Pedilanthus macrocarpus Benth., (no voucher) Muhlenbergia dumosa Scribn., (00142) Koberlinia spinosa Zucc., (no voucher) Krameria erecta Willd., (02314)

Euphorbiaceae

Candelilla, candetia Otatillo

Milky sap Constipation

Krameriaceae

Corona de cristo Cosahui

Hyptis suaveolens L. Poit., (00057)

Lamiaceae

Marrubium vulgare L., (00032) Mentha spicata L., (no voucher)

Gramineae

Ailments treated

Leaves

Indigestion

Flowers

Diarrhea

Chía, konivari

Branches, stems and roots Seeds

Diarrhea, stomach and intestinal cancer Constipation, indigestion

Lamiaceae

Marrubio

Seeds

Lamiaceae

Yerba buena

Leaves and stems

Stomach-ache, intestinal parasites Stomach-ache

Monarda austromontana Epling, (02152)

Lamiaceae

Orégano

Seeds

Stomach-ache

Acacia angustissima Mill., (00217)

Mimosaseae

Guajillo, vinorama

Diarrhea, intestinal inflammation

Acacia constricta Benth., (00059)

Mimosaseae

Vinorama

Flowers, seeds, leaves, bark Leaves and seeds

Acacia farnesiana L., Willd., (01671)

Mimosaseae

Huizache, vinorama

Bark and thorns

Diarrhea

Coursetia glandulosa A. Gray, (03165)

Fabaceae

Zámota

Gum

Diarrhea

Erythrina flabelliformis Kearney, (03365)

Fabaceae

Chilicote, colorin

Seeds

Diarrhea

Indigofera suffruticosa Mill., (04262)

Fabaceae

Añil

Leaves

Constipation

Koberliniaceae

Stomach-ache, diarrhea

Preparations

Modes of use

Tribal affiliation

Citations Citations (n) (%)

In a cup of water add two drops of sap Prepare a tea with leaves Prepare a infusion with the flowers Prepare a tea from branch, stem or root

Drink daily to induce defecation Drink a cup of tea

Mayo

3

100

Guarijio

2

66

Seri

3

100

Mayo

3

100

The seeds are submerged in water and allowed to rest. The seeds are macerated in cold water Prepare a tea with the leaves and stems The seeds are submerged in cold water and allowed to rest. Prepare a tea with any part of the plant

The seeds and leaves are mashed and macerated in hot water Three thorns per cup of water or a piece of bark are boiled Prepare a cup of hot and concentrated tea from the gum The seeds are submerged in water and allowed to rest for some hours. A powder is prepared of the leaaves and extracted in water

Drink the tea while the diarrhea persist The tea is used as every day drinking water The infusion is drunk as normal water

Mayo, Yaqui 4

66

Mayo, Yaqui 6

100

Mayo

3

100

Guarijio

2

66

Drink while diarrhea persist

Mayo

2

66

The infusion is drunk as a tea

Mayo, Seri

6

100

Drink as substituting drinking water

Mayo

2

66

Drink a cup of tea when you have an ache and before you sleep The infusion is drunk as normal water

Pima

3

100

Seri

3

100

Drink the extract prepared with powder as laxative

Mayo

3

100

The infusion is drunk as a tea The tea is used as every day drinking water The infusion is drunk as normal water

S.F. Moreno-Salazar et al. / Fitoterapia 79 (2008) 132–141

Botanical name and voucher specimen

Lysiloma divaricata (Jacq.) J.F. Macbride, (07212) Lysiloma watsoni Rose, (03340)

Mimosaseae

Diarrhea, stomach-ache

Prepare a tea from bark

Drink tea until problems disappear

Guarijio

3

100

Diarrhea, stomach-ache

An infusion is extracted from the bark

Guarijio

3

100

Fabaceae

Trébol agrio, trébol amargo

Stomach-ache

Prepare a tea with the branches and the flowers

Mayo, Seri

4

66

Olneya tesota A. Gray, (00271)

Fabaceae

Palo fierro

Branches and flowers, Bark

Diarrhea and stomach-ache

The bark is ground and macerated in hot water

Mayo, Seri

6

100

Pithecellobium dulce (Roxb.) Benth., (00158)

Mimosaseae

Guamúchil

Bark

Diarrhea, stomach-ache

A piece of bark is boiled in a liter of water

Yaqui

3

100

Prosopis glandulosa Torr., (01046)

Mimosaseae

Mezquite

Stems

Constipation

Mayo

2

66

Linum usitatissimum L., (no voucher)

Linaceae

Lino

Whole plant

Constipation

Drink the tea

Mayo

3

100

Lobelia laxiflora H.B.K., (01027)

Lobeliaceae

Chilpanxochitl

Roots

Intestinal parasites

Charcoal is placed in a glass of water, it is shaken, then left to rest Boiling any part of the plant produces a tea with laxatives properties The roots are infused

Drink as tea when fasting. If the pain is very strong, tea can be drunk three times, a day maximum Drink tea while the stomach-ache persist A cup of infusion is taken whenever the person feels pain, until the diarrhea has disappeared A cup of tea is given before each meal until the problem has been alleviated Drink the infusion as normal water

Melilotus indica All., (01830)

Mayo

2

66

Phorandedron californicum Nutt., (01656)

Loranthaceae

Tóji

Branches

Diarrhea

Prepare a tea with the branches

Mayo

3

100

Phorandedron diguetianum Van Tieghem, (06898)

Loranthaceae

Tóji

Diarrhea

Prepare a tea with the stem and leaves

Seri

3

100

Struthantus haenkeanus Standley, (no voucher)

Loranthaceae

Toji

Stems and leaves Stems and leaves

Drink the tea everyday until the parasites are eliminated A cup of tea is drunk three times a day Drink tea while diarrhea persist

Diarrhea

The stems and leaves are used to produce an infusion which is prescribed to treat bloody diarrhea

Seri

3

100

Mimosaseae

Drink tea while diarrhea persist

137

(continued on next page)

S.F. Moreno-Salazar et al. / Fitoterapia 79 (2008) 132–141

Mauto, quiebra Bark hacha, vara blanca Tepehuaje, Bark machahui

138

Table 1 (continued ) Family

Local names

Parts used

Ailments treated

Preparations

Modes of use

Tribal affiliation

Citations Citations (n) (%)

Mascagnia macroptera (Ses. and Moc.) Niedenzu, (no voucher) Malva parviflora L., (01823) Sphaeralcea ambigua Gray, (01001)

Malpighiaceae

Gallinita, matanene

Leaves and roots

Diarrhea

Prepare a tea with leaves and roots

Drink tea while diarrhea persist

Mayo, Seri

6

100

Malvaceae

Malva

Leaves Roots

Mayo, Yaqui. Seri

83

Mal de ojo

Drink tea while inflammation persist Drink tea while diarrhea persist

5

Malvaceae

3

100

Allionia incarnata L., (03614)

Nyctaginaceae

Drink tea while diarrhea persist

Seri

3

100

Fraxinus standleyi Rehder, (no voucher)

Olereaceae

Guapile, hierba Whole del golpe, plant papalote Fresno Leaves and sap

Intestinal inflammation Prepare a tea with leaves Diarrhea Prepare a tea from the foamy and drolly pulp Diarrhea Prepare a tea with the whole plant Diarrhea, constipation

Drink tea while diarrhea persist

Guarijio

2

66

Fraxinus velutina Torr.,(00178)

Olereaceae

Fresno

Leaves and sap

Diarrhea, constipation

Drink tea while diarrhea persist

Guarijio

2

66

Plantago fastigiata (Morris), Jeps., (03634)

Plantaginaceae

Pastora

Seeds

Stomach-ache

Drink the water twice a day

Seri

3

66

Antigonon leptopus Hook and Arn., (00244) Potentilla thurberi Gray, (02243) Hintonia latiflora (Sesee. and Moc.) Bullock, (01916)

Polygonaceae

San miguelito

Leaves and roots

Stomach-ache

Drink tea when the ache is present

Guarijio, 8 Mayo, Yaqui

88

Rosaceae

Hierba colorada Copalquin, capichogua

Roots

Constipation, intestinal parasites Diarrhea

Drink until complete elimination of parasites Take a dose of one spoonful before each meal

Guarijio, 5 Mayo, Pima Mayo 3

55

Rubiaceae

Bark

Prepare a tea with the leaves and sap. Also the sap diluted in water is recommended Prepare a tea with the leaves and sap. Also the sap diluted in water is recommended The seeds are mixed with water and are allowed to rest half an hour. The gelatinous mass is eaten to calm the pain. It is considered very good for children Prepare a tea with the leaves and roots Prepare a infusion with roots Boil the bark in water

100

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Botanical name and voucher specimen

Solanum hindsianum Benth., (00047) Guazuma ulmifolia Lam., (00591)

Mariola

Sterculiaceae

Guázima

Flowers and roots Stem without bark

Celtis reticulata Torr., (01405)

Ulmaceae

Cúmaro

Leaves

Diarrhea

Lantana camara L., (01100) Lantana horrida H.B.K., (05133) Zostera marina L., (no voucher)

Verbenaceae

Confiturilla

Leaves

Diarrhea

Verbenaceae

Confiturilla

Roots

Diarrhea

Zosteraceae

Trigo de mar

Seeds

Diarrhea

Larrea tridentata Coville, (00118)

Zygophyllaceae Hediondilla, gobernadora

Leaves and roots

Intestinal parasites

a

These species are listed in alphabetic order by families.

Diarrhea Stomach-ache, diarrhea

Prepare a tea with the flowers and roots For diarrhea, the stem without the bark is boiled. For stomach-ache, boil the stem heart with some sugar or leave it soaking all night without boiling The leaves are mashed and put into a half liter of water, then are squeezed until water turns green Prepare a tea with the leaves Boil the roots in water Prepare a thick beverage (atole) with the seeds Prepare a tea with the leaves and roots

Drink tea while diarrhea persist For diarrhea to drink everyday. For stomach-ache, the infusion is used as daily drinking water

Seri

3

100

Guarijio

3

100

Take a spoonful before each meal

Yaqui

3

100

Drink tea while diarrhea persist Drink liquid once a day

Mayo

3

100

Mayo

2

66

Use as remedy for diarrhea in children

Seri

2

66

Drink tea as daily drinking water until the elimination of all parasites

Mayo, Seri

4

66

S.F. Moreno-Salazar et al. / Fitoterapia 79 (2008) 132–141

Solanaceae

139

140

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The majority of these indigenous people are dedicated to agriculture as field laborers [1]. The Guarijio, Yaqui and Mayo mix their religious belief with the application of cures, while the Seri, Pima and Papago are more pragmatic since they only administer the remedy. Aim of study In this paper, the plants utilized by the indigenous tribes from Sonora to treat gastrointestinal diseases are reported, indicating the species of plant, common name, form of usage, parts of the plant used and the specific sickness that is treated. Previous knowledge on local folk medicine This study is complementary and part of greater work denominated Compendio Fitoquímico de la Medicina Tradicional Herbolaria de Sonora [2]. This is the only systematic study made on the medicinal plants used by these ethnic groups. Methodology Three of the most famous and reliable practitioners of traditional indigenous medicine, from each predominant ethnic group (Mayo, Yaqui, Pima, Seri, Guarijio and Papago), were chosen as informants. Interviews with these healers have helped us to determine which plants are used for the treatment of gastrointestinal diseases. The questionnaire answered by each healer included several aspects such as local name of the plant, sickness treated, mode of use and part of the plant used. The plants are arranged under their particular family in alphabetical order, as well as the names of the species in each family. Plants were identified by comparison with Herbarium specimens of the Universidad de Sonora Herbarium, in Hermosillo, Sonora, Mexico. Results Reported in Table 1. Conclusions In this study, the data analysis, shows that 12 types of gastrointestinal illnesses are cured using 85 different species of plant which belong to 38 families and 68 spp., all are part of the traditional herbal medicine of Sonora. 39 species of plants are used to treat diarrhea, 28 for stomach-ache, 12 for constipation, 9 for intestinal parasites, 6 for indigestion, 3 for stomach or intestinal cancer, 3 for stomach inflammation and only 1 for the treatment of the following gastrointestinal sicknesses or disorders: ulcers, gastritis, colitis and colic. In several cases the same species of plant is used for more than one disease. Regarding the use of species per ethnic group the following was observed: Mayo used 47 species; Seri, 27; Yaqui, 13; Guarijio, 12; Pima, 5; and Papago, 3. Moreover, there are species that are used by two or more tribes, sometimes for the same or different illnesses but always related to the gastrointestinal system. Parkinsonia aculeate is recommended by both Mayo and Seri to alleviate stomach-ache, Chenopodium ambrosioides, is used for intestinal parasite elimination by the Mayo as well as the Yaqui. Ambrosia confertiflora, which Yaqui prescribes for stomach-ache, is used by Mayo for stomach inflammation. Some species listed in this article have been formerly reported as medicinal plants in other parts of the world as Krameria spp. for the treatment for stomach-ache and diarrhea [3]. Other studies report the traditional medicinal of peculiar region or ethnic group [4–8]. With this study we have started an integral program for the compilation, for the first time, of a list of plants used by the indigenous tribes of Sonora for medical purposes attesting the great utility that they represent in the life of these ethnic groups. Acknowledgement We would like to thank the Consejo Nacional de Ciencia y Tecnología, Mexico (CONACYT) for the grant for this project.

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