North America · Herb · № 158
American skullcap
Scutellaria lateriflora (en S. baicalensis)
Used in Western herbalism for nervousness, tension and sleep problems. A few small studies suggest a mild calming effect.
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 · № 158
Scutellaria lateriflora (en S. baicalensis)
Used in Western herbalism for nervousness, tension and sleep problems. A few small studies suggest a mild calming effect.
North America · Herb · № 826
Podophyllum peltatum
A poisonous plant whose resin, podophyllin, was once used as a laxative. Now only used in the form of medicines against warts.
North 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.
Central America and the Caribbean · Herb · № 161
Capsicum frutescens
Capsaicin from chilli peppers is used externally for nerve pain and joint pain; high-dose capsaicin patches are an approved medicine. Internally it is mainly a warming spice.
North America · Herb · № 182
Gelsemium sempervirens
Contains alkaloids such as gelsemine that act on the nervous system. In the 19th century it was used for nerve pain, migraine and fever, but its toxicity makes any use dangerous. Homeopathic gelsemium is so diluted that it contains no active substance.
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 · Herb · № 155
Phytolacca americana
Formerly used for swollen glands, tonsillitis and rheumatism. Because of its toxicity it is not a safe herb; there is no evidence of benefits that outweigh the risks.
North America · Herb · № 168
Zanthoxylum americanum
Bark and berries give a tingling, numbing feeling in the mouth; they were traditionally used for toothache, poor circulation and rheumatism. Clinical research is lacking.
North America · Herb · № 169
Morella cerifera
The root bark was traditionally used for colds, sore throats and diarrhoea. There is no modern clinical evidence.
North America · Herb · № 156
Prunus serotina
The dried bark was long used in cough syrups to calm irritating coughs. Modern clinical evidence is lacking.
North 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.
North America · Herb · № 281
Iris versicolor
Traditionally attributed effects: anti-inflammatory, diuretic, stimulating, laxative.
North America · Herb · № 280
Caulophyllum thalictroides
Traditionally attributed effects: tonic, antispasmodic, anti-inflammatory, stimulates the uterus, diuretic, antirheumatic.
North America · Herb · № 372
Sanguinaria canadensis
Traditionally attributed effects: stimulating, emetic, expectorant, restorative; part of escharotic treatment for cervical dysplasia, warms lungs/stomach/uterus, promotes coughing up.
North America · Herb · № 306
Hydrangea arborescens
Traditionally attributed effects: diuretic, laxative, stimulates the kidneys.
North 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.
North America · Herb · № 327
Rhus aromatica
Traditionally attributed effects: astringent, tonic, antidiabetic, diuretic.
North America · Herb · № 307
Lobelia inflata
Traditionally attributed effects: relaxing, expectorant, induces sweating, emetic, antispasmodic, anti-asthmatic.
North America · Herb · № 326
Mitchella repens
Traditionally attributed effects: stimulates the uterus, tonic, restorative, astringent, diuretic.
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 · Herb · № 295
Chionanthus virginicus
Traditionally attributed effects: promotes bile, stimulates the liver, tonic, diuretic.
North America · Herb · № 953
Collinsonia canadensis
A perennial of the mint family with lemon-scented leaves and a very hard, knobbly root. Eclectic physicians used it for piles and varicose veins; research is lacking.
North America · Herb · № 294
Chamaelirium luteum
Traditionally attributed effects: diuretic, uterine tonic, emetic.
North America · Herb · № 581
Veronicastrum virginicum
Traditionally attributed effects: laxative, stimulating, supports the liver, promotes bile; decongests liver and gallbladder, for gallbladder pain and jaundice.
North America · Herb · № 285
Lycopus virginicus
Traditionally attributed effects: calming, astringent, tonic, vasoconstricting, cough-suppressing, stops bleeding.
North America · Herb · № 586
Cypripedium parviflorum (syn. C. pubescens)
Traditionally attributed effects: strengthens the nerves, antispasmodic, tonic, relaxing, diuretic; for menstrual pain and irregular menstruation, overstimulated nerves and insomnia from stress, pain-relieving.
North America · Herb · № 190
Thuja occidentalis
Traditionally attributed effects: expels worms, astringent, antimicrobial, anti-inflammatory, stimulates muscles, antiseptic.
North America · Herb · № 332
Baptisia tinctoria
Traditionally attributed effects: antiseptic, antibacterial, fever-reducing, laxative.
North America · Herb · № 575
Viburnum prunifolium
Traditionally attributed effect: antispasmodic and relaxing, especially for menstrual and uterine cramps. Clinical research is lacking; that it can prevent miscarriage has not been shown.
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.