From Ayurveda to Rongoā Māori
Communities around the world learned how plants nourish, care and heal. Here their traditions stand beside present-day use, with respect for every culture.
GrapeFolk magic and herbal magic
BuchuLocal African healing traditions
Indian tobaccoCherokee medicine
Lignum vitaeHerbal knowledge of the Caribbean
Yerba mateKallawaya healing knowledge
CautionCentral America and the Caribbean · Herb · № 928
Turnera diffusa
A small, woody shrub with small, strongly scented leaves and yellow flowers. Contains flavonoids such as apigenin and acacetin, terpenes and a small amount of cyanogenic glycosides. Considered mildly calming and uplifting; which substances cause this is not known.
CautionCentral America and the Caribbean · Herb · № 820
Artemisia ludoviciana
A bitter, aromatic herb used in Mexico for stomach ache and digestive complaints.
CautionCentral America and the Caribbean · Herb · № 923
Heimia salicifolia
A shrub of the loosestrife family with narrow leaves and yellow flowers. Contains vertine (cryogenine), lyfoline and lythrine. Said to cause slight dizziness, a yellow tint over what one sees and the feeling that sounds come from far away.
CautionNorth America · Herb · № 159
Dioscorea villosa
Traditionally used for abdominal and uterine cramps. Wild yam cream is sold as 'natural progesterone', but the body cannot convert diosgenin into hormones; only a laboratory can.
CautionCentral America and the Caribbean · Herb · № 632
Anemopsis californica
Traditionally attributed effects: expels wind and dampness in joint pain that worsens in cold, wet weather, opens blocked sinuses and dries dampness in slow-healing wounds and swellings.
CautionCentral America and the Caribbean · Herb · № 922
Calea ternifolia (syn. Calea zacatechichi)
A shrub of the daisy family with very bitter leaves. Contains caleicine and other sesquiterpene lactones, among others. Said to make sleep light and dreams clear and vivid; in a small study an extract caused a slight change of perception, drowsiness and a short sleep with vivid dreams.
CautionCentral America and the Caribbean · Herb · № 347
Tagetes erecta
Traditionally attributed effects: curbs sebum in oily skin, calms and prevents dehydration in dry skin, hydrates and keeps wrinkles at bay in combination skin; spiritual symbol of inner fire.
CautionAfrica · Herb · № 4
Aloe vera
The gel from the leaf is used externally to soothe the skin and for minor burns. Research on wound healing gives mixed results; the gel is no substitute for wound care.
CautionSouth America · Herb · № 896
Ambrosia peruviana
An aromatic, hairy ragweed. In its native range it is used as a painkilling, anti-inflammatory, deworming and antiseptic remedy; good research is lacking.
CautionCentral America and the Caribbean · Herb · № 374
Amaranthus spp.
Traditionally attributed effects: flowers, leaf and root strongly antiseptic; wound healing.
CautionNorth America · Herb · № 992
Liquidambar styraciflua
A tall tree with star-shaped leaves, splendid autumn colours and spiky round seed balls. When the bark is wounded a fragrant resin, American storax, seeps out; for centuries it has gone into ointments, perfume and incense. The resin is mildly antiseptic.
CautionNorth America · Herb · № 1001
Platanus occidentalis
One of the largest broadleaf trees of eastern America, with a trunk that peels in patches of white, green and brown. The bark contains tannins and betulinic acid. It is a parent of the London plane of European streets.
CautionCentral America and the Caribbean · Food · № 166
Persea americana
A fruit rich in monounsaturated fats, fibre and potassium; it fits a diet that is favourable for cholesterol. Avocado oil is used in skin care.
CautionNorth America · Herb · № 991
Cornus florida
A small tree with large white bracts around a knot of tiny flowers in spring, red berries and red autumn leaves. The bark is astringent and bitter; in the American Civil War it served as a substitute for quinine, and in the laboratory compounds from the bark moderately inhibited the malaria parasite. The berries are poisonous to people.
CautionSouth America · Herb · № 886
Cascabela thevetia (syn. Thevetia peruviana)
A shrub with yellow trumpet flowers, related to oleander. All parts, especially the seeds, contain cardiac glycosides that act on the heart.
CautionSouth America · Herb · № 1003
Campyloneurum angustifolium (en verwante varens, o.a. Polypodium)
A narrow-leaved fern that grows on trees and rocks. The rhizome has been traded as a medicine for centuries; good research on its effect in people is lacking.
CautionCentral America and the Caribbean · Other · № 392
Euphorbia antisyphilitica
Traditionally attributed effects: plant wax that makes the balm firm.
CautionCentral America and the Caribbean · Herb · № 161
Capsicum frutescens
Capsaicin from chilli peppers is used externally for nerve pain and joint pain; high-dose capsaicin patches are an approved medicine. Internally it is mainly a warming spice.
CautionSouth America · Herb · № 984
Helosis cayennensis
A plant without chlorophyll that parasitises the roots of trees and shrubs (family Balanophoraceae). It looks like a young mushroom, until the 'cap' turns out to be a reddish-brown spike full of tiny flowers. Its action has hardly been studied.
CautionCentral America and the Caribbean · Other · № 817
Protium copal
Resin from tropical trees that is burned as incense at ceremonies.
CautionCentral America and the Caribbean · Herb · № 481
Datura metel
Traditionally attributed effects: narcotic, pain-relieving, antispasmodic (like belladonna); compress for rheumatic swellings, lumbago, sciatica, nerve pain, painful tumours; leaves and seeds for asthma and whooping cough; liniment for painful menstruation.
CautionCentral America and the Caribbean · Herb · № 460
Dysphania ambrosioides (syn. Chenopodium ambrosioides)
A strong-smelling culinary herb traditionally used against intestinal worms and wind. The essential oil contains ascaridole, which kills worms but is also toxic to humans.
CautionNorth America · Herb · № 182
Gelsemium sempervirens
Contains alkaloids such as gelsemine that act on the nervous system. In the 19th century it was used for nerve pain, migraine and fever, but its toxicity makes any use dangerous. Homeopathic gelsemium is so diluted that it contains no active substance.
CautionNorth America · Herb · № 170
Grindelia camporum
The sticky herb was traditionally used for coughs, asthma and bronchitis, and externally for poison-ivy rashes. Clinical evidence is lacking.
CautionSouth America · Herb · № 925
Mimosa tenuiflora (syn. Mimosa hostilis)
A thorny tree or shrub of the pea family with feathery leaves and white, fragrant flower spikes. The root bark contains much DMT. Taken by mouth, DMT normally does not work without an MAO inhibitor; why the jurema drink is still said to work is not clear.
CautionEurope · Herb · № 231
Coriandrum sativum
Traditionally attributed effects: aromatic, stimulating, carminative, stomachic, cooling, tonic, diuretic; for flatulence, colic, rheumatism, nerve pain, sore throat, indigestion, vomiting, colds, bile complaints.
CautionCentral America and the Caribbean · Food · № 266
Zea mays
Traditionally attributed effects: diuretic, heals the urinary tract lining, tonic, soothing.
CautionNorth America · Herb · № 929
Dermatophyllum secundiflorum (syn. Sophora secundiflora)
An evergreen shrub or small tree of the pea family with purple, grape-scented flowers and hard, bright red seeds. The seeds contain cytisine, a poison resembling nicotine. A single seed can be fatal.
CautionCentral America and the Caribbean · Herb · № 420
Argemone mexicana
Traditionally attributed effects: root diuretic, cleansing, pain-relieving, sleep-inducing; seeds laxative, emetic, expectorant; for oedema, jaundice, skin diseases, warts, scabies, gonorrhoea, tapeworm, cough and asthma.
CautionSouth America · Herb · № 880
Petiveria alliacea
A herb with a strong garlic smell. It has been studied for anti-inflammatory and antimicrobial effects; clinical evidence is lacking.
CautionSouth America · Herb · № 897
Muehlenbeckia volcanica
A low, creeping shrublet with small, round, leathery leaves and blue-black berries. Tannins and flavonoids have been found in the extract; in rats it was anti-inflammatory.
CautionCentral America and the Caribbean · Herb · № 906
Ipomoea corymbosa (syn. Turbina corymbosa, Rivea corymbosa)
A woody morning glory with white flowers. The small, round seeds contain ergine (LSA) and related ergoline alkaloids, chemically related to LSD. They bring an intoxication with visions, often with nausea and lethargy.
CautionNorth America · Herb · № 153
Ligusticum porteri, L. sinense en L. wallichii
The root is traditionally used for sore throats, coughs and early colds. There is virtually no clinical research.
CautionSouth America · Herb · № 882
Bursera graveolens
A tree of the frankincense and myrrh family, with strongly scented wood that contains essential oil.
CautionSouth America · Herb · № 165
Handroanthus impetiginosus (syn. Tabebuia avellanedae)
The inner bark is sold for fungal infections, inflammation and as a 'cancer remedy'. There is no reliable human evidence; its active compound lapachol proved too toxic at effective doses.
CautionSouth America · Herb · № 885
Piper aduncum
A shrub of the pepper family with rough, fragrant leaves. The leaf was traditionally used to stop bleeding; research is limited.
Featured · Central America and the Caribbean · Curanderismo
Salvia divinorum
A sage with large leaves containing salvinorin A, a very potent substance acting on the kappa opioid receptor. Brings short-lived, often intense changes in perception and the feeling of leaving the body.
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43 traditions
How communities built up and passed on their knowledge of plants, region by region.
113 recipes
Soups, teas and dishes in which herbs play a leading role.
146 formulas
The classical Chinese formulas, also listed by condition.