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
CautionAsia · Herb · № 123
Citrus × aurantium
The dried unripe fruit (zhi shi) and peel are used in Chinese medicine for bloating and sluggish digestion. NCCIH warns that weight-loss products containing bitter orange (synephrine) pose risks to the heart and blood pressure.
CautionSouth America · Herb · № 162
Anemopaegma arvense / Erythroxylum catuaba
Sold in Brazil as a stimulant and aphrodisiac. There is no good clinical research; products vary because several different trees are called 'catuaba'.
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.
CautionAsia · Mushroom · № 147
Ophiocordyceps sinensis (syn. Cordyceps sinensis)
A fungus that parasitises caterpillars. Used in Tibetan and Chinese medicine for fatigue, lung complaints and low libido. Studies are small and there is no convincing evidence.
CautionAfrica · Herb · № 24
Harpagophytum procumbens
The tuberous roots are used in folk medicine for pain. Research suggests a possible limited effect on low back pain; the evidence is of moderate quality at best.
CautionEurope · Herb · № 107
Teucrium chamaedrys
Formerly used as a digestive bitter, for gout and as a slimming aid. The risk of liver damage outweighs any possible benefit.
CautionSouth America · Herb · № 163
Paullinia cupana
The seeds contain about twice as much caffeine as coffee beans. Guarana is used in energy drinks and soft drinks; its stimulating effect comes from caffeine.
CautionAsia · Herb · № 144
Tinospora cordifolia
In Ayurveda a rejuvenating remedy (rasayana) for fevers and the immune system. Studies are small; it has no proven effect against infections.
CautionSouth America · Herb · № 33
Uncaria tomentosa
There is no conclusive scientific evidence that cat's claw helps any health condition.
CautionSouth America · Food · № 32
Lepidium meyenii
A root crop eaten as food. Claims about fertility and energy are unproven.
CautionEurope · Herb · № 46
Silybum marianum
Promoted for liver disorders, but there is not enough high-quality evidence of effects in people.
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 · № 164
Hebanthe eriantha (syn. Pfaffia paniculata)
Sold as 'Brazilian ginseng' and an adaptogen for fatigue. There is hardly any human research.
CautionAfrica · Herb · № 29
Pelargonium sidoides
Root extract is sold for respiratory complaints. A Cochrane review found little to no evidence of benefit for acute bronchitis, colds, or sinusitis.
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.
CautionNorth America · Herb · № 35
Serenoa repens
Promoted for urinary symptoms of an enlarged prostate, but NCCIH concludes it probably does not help for this.
CautionNorth America · Herb · № 150
Actaea racemosa
Mainly sold for menopausal symptoms such as hot flushes. NCCIH reports that study results are mixed and there is not enough evidence that it helps.
CautionAsia · Herb · № 552
Sida cordifolia
Traditionally attributed effects: cooling, astringent, stomachic, tonic, fever-reducing, soothing, diuretic; contains an ephedrine-like substance.
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 · Herb · № 1
Zingiber officinale
Traditionally used for nausea and digestive discomfort; it has a warming flavor.
CautionAfrica · Herb · № 808
Hoodia gordonii
A succulent whose stem the San chewed against hunger and thirst. Not proven as a slimming aid.
CautionOceania · Herb · № 7
Piper methysticum
The drink slightly numbs the mouth and tongue and is relaxing. Research points to a modest effect on anxiety, but results vary and the safety of supplements is disputed.
CautionEurope · Other · № 382
Laminaria spp. / Ascophyllum nodosum
Brown seaweeds are rich in iodine and alginate. They are used in scrubs and as food supplements; too much iodine can disrupt the thyroid.
CautionEurope · Herb · № 565
Tribulus terrestris
Traditionally attributed effects: cooling, soothing, diuretic, tonic, aphrodisiac.
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.
CautionAsia · Herb · № 5
Curcuma longa
A traditional culinary spice containing curcumin; laboratory findings do not establish a cure for disease.
CautionNorth America · Herb · № 368
Ceanothus americanus
Traditionally attributed effects: astringent, antispasmodic, expectorant, calming; for a swollen spleen (e.g. after glandular fever), cools and constricts blood vessels in bleeding and congestion of the uterus, liver and lymph.
CautionAsia · Herb · № 750
Reynoutria multiflora (syn. Polygonum multiflorum)
Traditionally attributed effects: processed a tonic for blood, liver and kidneys; raw mildly laxative and detoxifying.
CautionAsia · Herb · № 135
Piper nigrum
Important warming spices in Ayurveda, used for sluggish digestion and colds. Piperine from pepper increases the absorption of some substances, such as curcumin.
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.
Read moreFrom plant to use
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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.