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
CautionNorth America · Herb · № 997
Diospyros virginiana
A tree of the ebony family, related to the kaki. Unripe, the orange fruits are so astringent that they pucker the mouth, but after the first frost they are sweet and soft. They are rich in vitamin C. Bark and unripe fruits contain many tannins.
CautionNorth America · Herb · № 931
Tsuga canadensis
An evergreen conifer with short, flat needles. The bark is rich in tannins and was once used to tan leather. Medicinal effects have not been studied.
CautionSouth America · Herb · № 915
Krameria lappacea (syn. Krameria triandra)
A low shrub that is partly parasitic on the roots of other plants. The red root is rich in tannins and is therefore astringent. In Europe rhatany root is listed in the pharmacopoeia and used in mouthwashes and gum remedies.
CautionNorth America · Herb · № 967
Alnus rubra
A fast-growing alder with smooth grey bark that turns red after cutting. The bark is rich in tannins and astringent.
CautionSouth America · Herb · № 877
Tara spinosa (syn. Caesalpinia spinosa)
A thorny tree with red pods that are very rich in tannins. In laboratory tests, extracts of the pods inhibited several bacteria.
CautionNorth America · Herb · № 969
Tsuga heterophylla
A large conifer with a drooping top and short, flat needles. The bark is very rich in tannins; the young needles contain vitamin C.
CautionEurope · Herb · № 57
Agrimonia eupatoria
An astringent, tannin-rich herb traditionally used for diarrhoea, sore throats and minor wounds. Good human research is lacking.
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.
CautionAfrica · Herb · № 398
Acacia nilotica
Traditionally attributed effects: astringent, soothing, aphrodisiac, nourishing, expectorant; for cough, diarrhoea and dysentery, sore throat and spongy gums, wounds and skin diseases, gonorrhoea, leucorrhoea, prolapse of anus and uterus.
CautionEurope · Herb · № 93
Betonica officinalis (syn. Stachys officinalis)
Traditionally used for tension headaches and nervousness. Modern clinical research is lacking.
CautionEurope · Food · № 73
Fragaria vesca
The tannin-rich leaf was traditionally used for mild diarrhoea; the fruit is a treat rich in vitamin C. Medical evidence is lacking.
CautionNorth America · Herb · № 959
Erigeron canadensis (syn. Conyza canadensis)
An annual of the daisy family with an upright, hairy stem and countless small white flower heads. Contains volatile oil, tannins and flavonoids; the oil was once used as 'oil of erigeron' for bleeding and diarrhoea.
CautionAsia · Herb · № 396
Acacia catechu
Traditionally attributed effects: strongly astringent; for chronic diarrhoea and dysentery, bleeding haemorrhoids, uterine bleeding, leucorrhoea; bleeding or inflamed gums, mouth ulcers, enlarged tonsils; bedsores; promotes milk flow.
CautionSouth America · Herb · № 867
Fragaria chiloensis
A wild strawberry with large, fragrant fruits, one of the parents of the garden strawberry. The leaf contains tannins.
CautionAsia · Herb · № 137
Rheum palmatum
The root (da huang) contains anthraquinones, making it a strong laxative. In small amounts its tannins have the opposite, binding effect. Its mechanism is well understood.
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 · № 274
Geranium maculatum
Traditionally attributed effects: astringent, stops bleeding, tonic.
CautionAsia · Food · № 343
Punica granatum
Traditionally attributed effects: root and stem bark astringent and strongly expel tapeworm; flowers and peel astringent and stomachic; juice cooling.
CautionEurope · Herb · № 591
Lythrum salicaria
Traditionally attributed effects: cleansing, antibiotic, antispasmodic, diuretic, induces sweating, tonic, soothing; for dysentery and bacterial diarrhoea, inflammatory bowel disease (Crohn's), strengthens kidneys and bladder, for the eyes.
CautionEurope · Herb · № 191
Sorbus aucuparia
The orange berries are rich in vitamin C and are eaten cooked; raw they contain parasorbic acid, which irritates the stomach and bowel. A medicinal effect has hardly been studied.
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.
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.
CautionSouth America · Herb · № 865
Gunnera tinctoria
A giant plant with leaves up to two metres across. The peeled stalks are edible; root and stalks are rich in tannins.
CautionNorth America · Herb · № 974
Malus fusca
A small apple tree with small, sour, oval apples and very tough wood. The bark contains tannins.
South America · Herb · № 912
Geranium ayavacense en Geranium sessiliflorum
Low, rosette-forming cranesbills with a thick root. They contain tannins. Whether the tea lowers blood sugar has not been properly studied in people.
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.
CautionEurope · Herb · № 45
Salvia officinalis
A culinary herb. A few small studies suggest possible effects on memory and blood lipids, but evidence is limited.
CautionNorth America · Food · № 979
Notholithocarpus densiflorus
An evergreen tree of the beech family, between oak and chestnut. The acorns are nourishing but bitter with tannins, which must first be leached out.
CautionEurope · Herb · № 328
Potentilla erecta
Traditionally attributed effects: astringent, especially for the intestinal wall.
CautionNorth America · Herb · № 152
Hamamelis virginiana
Strongly astringent due to tannins. Witch hazel water and ointment are used externally for minor skin irritation, bruises and haemorrhoids; there is limited but reasonably supportive evidence.
CautionEurope · Herb · № 230
Potentilla reptans
The tannin-rich herb was used as a mouthwash and for diarrhoea. A medicinal effect has not been studied.
CautionOceania · Food · № 173
Acacia spp. (o.a. A. holosericea, A. decurrens)
Roasted wattleseed is a protein- and fibre-rich bushfood. The bark of some species is rich in tannins and was used for wounds and diarrhoea. There is little clinical research.
CautionNorth America · Herb · № 968
Rumex occidentalis (syn. R. aquaticus var. fenestratus)
A large dock with broad leaves and a yellow root. The root contains tannins and anthraquinones, which are mildly laxative.
CautionNorth America · Herb · № 598
Quercus alba
Traditionally attributed effects: strongly astringent; strengthens lax tissue (diarrhoea, inflamed gums, chronic nasal congestion, weak bladder), stops bleeding (nosebleeds, internal bleeding).
CautionNorth America · Herb · № 973
Rubus spectabilis
A bramble with pink flowers and yellow-orange to red berries. Leaves and bark contain tannins and are astringent.
CautionEurope · Herb · № 187
Quercus robur
The bark contains a lot of tannins and is astringent. It is used as a decoction for diarrhoea, as a mouthwash for inflamed gums and as a sitz bath for haemorrhoids.
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.