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 · № 369
Smilax spp. (o.a. Smilax ornata)
The root contains saponins and was long sold as a 'blood-purifying' remedy and for skin conditions. There is no evidence that sarsaparilla treats herpes, syphilis or other infections.
CautionAsia · Herb · № 682
Isatis tinctoria (syn. I. indigotica)
Traditionally attributed effects: root (ban lan gen) and leaf (da qing ye) cool heat and 'toxin' in viral infections, sore throat and mumps.
CautionEurope · Herb · № 57
Agrimonia eupatoria
An astringent, tannin-rich herb traditionally used for diarrhoea, sore throats and minor wounds. Good human research is lacking.
CautionEurope · Other · № 597
Usnea barbata
Traditionally attributed effects: antimicrobial, antifungal, immunomodulating, soothing, laxative, nourishing; against streptococci (sore throat), staphylococci, cellulitis and infected wounds, antiviral (HPV), yeast infections.
CautionAfrica · Herb · № 8
Ocimum basilicum
Traditionally used as an aromatic food plant and in herbal preparations.
CautionAsia · Herb · № 354
Eclipta prostrata
Traditionally attributed effects: strengthens the liver, decongestant, tonic, cleansing, antiviral; for enlarged liver and spleen, skin diseases, fever, oedema, rheumatism; hair oil for black and full hair; for swollen glands, elephantiasis, headache and toothache.
CautionNorth America · Herb · № 151
Eupatorium perfoliatum
Traditionally used for fever and flu with aching muscles; the name refers to 'break-bone fever'. There is hardly any modern clinical research.
CautionNorth America · Herb · № 34
Hydrastis canadensis
There is not enough evidence to determine whether goldenseal helps any health condition.
CautionAsia · Herb · № 125
Ephedra sinica
Contains ephedrine, which widens the airways and stimulates the nervous system and heart. It is the origin of modern ephedrine and pseudoephedrine medicines. As a supplement it has proved dangerous.
CautionEurope · Herb · № 85
Melissa officinalis
Traditionally used for restlessness, sleep problems and a nervous stomach; externally for cold sores. Small studies suggest a mild calming effect, but evidence is limited.
CautionNorth America · Herb · № 14
Echinacea purpurea
Studied for colds and respiratory infections. It may slightly reduce the chance of catching a cold; effects on duration and other conditions are uncertain.
CautionAsia · Food · № 16
Camellia sinensis
A brewed tea. Evidence does not establish most health claims; extracts differ from the ordinary beverage.
CautionAsia · Herb · № 505
Grewia hirsuta
Traditionally attributed effects: fever-reducing, diuretic, expectorant, antiviral; fruit for diarrhoea and dysentery, wound healing, heart disease, seminal loss and leucorrhoea.
CautionEurope · Herb · № 78
Hyssopus officinalis
Traditionally used for coughs, colds and congestion. Clinical evidence is lacking.
CautionEurope · Herb · № 81
Juniperus communis
The berries are traditionally used as a diuretic, for digestive complaints and externally for joint pain. Clinical evidence is limited.
CautionNorth America · Herb · № 970
Lomatium nudicaule (in Boas: Peucedanum)
An umbellifer with blue-green leaves and yellow umbels. The seeds are strongly aromatic; related lomatiums are being studied for antiviral effects.
CautionAfrica · Food · № 12
Allium sativum
A food with a long history of use. Supplement research suggests only limited effects and does not establish a treatment.
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.
CautionAsia · Food · № 42
Syzygium aromaticum
A spice. Clove oil containing eugenol may help with toothache; other claims are unproven.
CautionNorth America · Herb · № 370
Mahonia aquifolium
Traditionally attributed effects: cleansing, purifies the blood, tonic, stimulating, supports the liver; improves appetite and digestion, promotes liver and bile secretion, purifies the blood, helps with skin problems, sudden diarrhoea and chronic constipation.
CautionEurope · Herb · № 46
Silybum marianum
Promoted for liver disorders, but there is not enough high-quality evidence of effects in people.
CautionEurope · Herb · № 3
Mentha × piperita
Peppermint oil has been studied in irritable bowel syndrome and may reduce abdominal pain. The tea is used for a full stomach and nausea. With heartburn peppermint can make complaints worse.
CautionEurope · Food · № 362
Olea europaea
Olive oil is the basis of the Mediterranean diet, which is associated with a lower risk of cardiovascular disease. Olive leaf extract is sold as a remedy for infections and high blood pressure; the evidence for this is limited and there is no evidence that it treats flu or other viral infections.
CautionEurope · Herb · № 217
Origanum vulgare
A culinary herb with carvacrol and thymol, which inhibit bacteria and fungi in the laboratory. There is no good evidence that oregano oil treats infections in humans; undiluted oil irritates skin and mucous membranes.
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 · № 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.
CautionAsia · Mushroom · № 146
Wolfiporia cocos
One of the most widely used remedies in Chinese medicine, for fluid retention, poor digestion and restless sleep. Clinical research on fu ling alone is scarce.
CautionEurope · Herb · № 89
Rosa spp.
Rose hips are rich in vitamin C; a hip powder has been studied for osteoarthritis with modest results. Rose water and oil are used in skin care and as fragrance.
CautionAsia · Herb · № 140
Santalum album
Used in Ayurveda as a 'cooling' remedy for skin irritation and urinary complaints; the oil is used in aromatherapy. Clinical evidence is limited.
CautionAsia · Mushroom · № 145
Lentinula edodes
An edible mushroom. Lentinan from shiitake is researched and used in oncology in Japan; there is little evidence for ordinary shiitake as an 'immune booster'.
CautionEurope · Herb · № 43
Hypericum perforatum
Research suggests it may help mild to moderate depression; evidence for other uses is insufficient.
CautionEurope · Herb · № 298
Chelidonium majus
Traditionally attributed effects: diuretic, cleansing, stimulates the liver, anti-inflammatory.
CautionOceania · Other · № 22
Melaleuca alternifolia
An essential oil for external use. Limited research suggests possible effects for acne or athlete’s foot; evidence is preliminary.
CautionEurope · Food · № 21
Sambucus nigra
Berries have a folk-use history for cold and flu symptoms; clinical evidence remains preliminary.
CautionAsia · Herb · № 18
Glycyrrhiza glabra
A root with long use in several traditions; high-quality evidence does not support most health claims.
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.