North America · Herb · № 978
California bay laurel
Umbellularia californica
An evergreen tree of the laurel family with strongly scented leaves. The leaf contains umbellulone, which causes headache when inhaled and is poisonous in large amounts.
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 · № 978
Umbellularia californica
An evergreen tree of the laurel family with strongly scented leaves. The leaf contains umbellulone, which causes headache when inhaled and is poisonous in large amounts.
North 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.
South America · Herb · № 861
Laurelia sempervirens
A tall evergreen tree with strongly scented leaves and wood. Traditionally for headache and as a diuretic; research is lacking.
North America · Herb · № 948
Coptis trifolia
A small evergreen herb with golden-yellow thread-like roots. These contain berberine, a bitter compound that inhibits bacteria in laboratory tests; related to Chinese goldthread (huang lian).
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.
South America · Herb · № 860
Cryptocarya alba
An evergreen tree of the laurel family with fragrant leaves and edible red fruits. Traditionally for liver and joint complaints; research is lacking.
North America · Herb · № 946
Chimaphila umbellata
A low, evergreen dwarf shrub with leathery leaves and pink nodding flowers. Contains arbutin and related compounds, like bearberry.
North 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.
North America · Herb · № 947
Epigaea repens
A creeping, evergreen dwarf shrub of the heath family with fragrant pink to white flowers in early spring. Contains arbutin.
South America · Herb · № 893
Azorella compacta (en verwante soorten)
An evergreen cushion plant that grows over the ground like a green boulder. It grows about one and a half centimetres a year; some plants are estimated to be over 3,000 years old. The plant contains a sticky resin.
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.