North America · Herb · № 963
Blue lettuce
Lactuca tatarica subsp. pulchella (syn. L. pulchella)
A wild lettuce with blue flower heads and milky sap that forms large colonies by runners. Effects not studied.
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.
North America · Herb · № 963
Lactuca tatarica subsp. pulchella (syn. L. pulchella)
A wild lettuce with blue flower heads and milky sap that forms large colonies by runners. Effects not studied.
North America · Herb · № 956
Artemisia frigida
A low, silver-grey, strongly scented wormwood shrub. Contains a volatile oil with camphor and cineole and, like other wormwoods, thujone.
North America · Herb · № 960
Lithospermum incisum (syn. L. linearifolium)
A member of the borage family with yellow trumpet-shaped flowers and a red root, related to Chinese gromwell (zi cao). Effects not studied.
North America · Herb · № 958
Ratibida columnifera (syn. R. columnaris)
A member of the daisy family with drooping yellow or red-brown ray flowers around a long, columnar centre that smells when bruised. Effects not studied.
North America · Herb · № 954
Pulsatilla nuttalliana (syn. P. patens subsp. multifida)
A low plant of the buttercup family with hairy purple flowers that appear before the leaves. Like other pasqueflowers, the fresh plant contains protoanemonin, which strongly irritates skin and mucous membranes and raises blisters.
North America · Herb · № 955
Glycyrrhiza lepidota
A legume with long, tough, sweet roots, related to true licorice. The root tastes of licorice; it contains less glycyrrhizin than Glycyrrhiza glabra.
North 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.
Central America and the Caribbean · Herb · № 820
Artemisia ludoviciana
A bitter, aromatic herb used in Mexico for stomach ache and digestive complaints.
North America · Herb · № 327
Rhus aromatica
Traditionally attributed effects: astringent, tonic, antidiabetic, diuretic.
North 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.
North America · Food · № 962
Astragalus crassicarpus
A low legume with purple-pink flowers and thick, round pods that lie on the ground like small plums. Only the young pods are edible.
North America · Herb · № 990
Asclepias tuberosa
A milkweed with bright orange flower umbels that attract many butterflies, and a thick, tuberous root. For a milkweed it contains few cardiac glycosides, but it does contain steroids that in larger amounts can cause weakness, seizures and eye damage. The root was listed in the United States Pharmacopeia as pleurisy root, an expectorant.
Europe · 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.
North America · Herb · № 964
Polygala senega (syn. Senega officinalis)
A low milkwort with white flower spikes. The root contains saponins that loosen phlegm and promote coughing; it is in the European Pharmacopoeia as a cough remedy.
Central America and the Caribbean · Herb · № 819
Nicotiana rustica
A ceremonial plant of many Indigenous peoples of the Americas. Tobacco is addictive and harmful to health.
North America · Herb · № 961
Monarda fistulosa
A mint with lilac flowers and strongly scented leaves, related to Oswego tea. The volatile oil is rich in carvacrol and thymol, which are antiseptic.
North America · Herb · № 957
Mirabilis nyctaginea (syn. Allionia nyctaginea)
Related to the marvel of Peru (Mirabilis jalapa), with a thick taproot and small pink flowers that open in the afternoon. Taken internally the root is strongly laxative.
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.