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 · № 160
Panax quinquefolius
Chinese medicine regards it as more 'cooling' than Asian ginseng and uses it for fatigue and thirst. Some studies find a slight effect on post-meal blood sugar and colds; evidence is limited.
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 · № 156
Prunus serotina
The dried bark was long used in cough syrups to calm irritating coughs. Modern clinical evidence is lacking.
North America · Herb · № 35
Serenoa repens
Promoted for urinary symptoms of an enlarged prostate, but NCCIH concludes it probably does not help for this.
North 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.
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.
North America · Herb · № 34
Hydrastis canadensis
There is not enough evidence to determine whether goldenseal helps any health condition.
North America · Food · № 13
Vaccinium macrocarpon
A food berry. Products may help lower recurrent UTI risk for some women, but findings are mixed; it does not treat an existing UTI.
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.
Europe · Herb · № 104
Viburnum opulus en V. prunifolium
The bark is traditionally used for muscle cramps and period pain; its English name is cramp bark. Clinical evidence is lacking.
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.
Europe · Herb · № 102
Verbascum thapsus
Leaves and flowers contain mucilage and are traditionally used for irritating coughs and bronchitis; the flower oil for earache. Clinical evidence is limited.
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.
North America · Herb · № 153
Ligusticum porteri, L. sinense en L. wallichii
The root is traditionally used for sore throats, coughs and early colds. There is virtually no clinical research.
North America · Herb · № 154
Passiflora incarnata
Used for anxiety and sleep problems. NCCIH notes some indications of an effect on anxiety but limited evidence.
North America · Herb · № 903
Lophophora williamsii
A small, spineless, blue-green cactus with a long taproot. Contains mescaline and over thirty other alkaloids. After a few hours mescaline brings colourful visions that last up to half a day, often after a phase of nausea and vomiting.
Asia · Mushroom · № 146
Wolfiporia cocos
One of the most widely used remedies in Chinese medicine, for fluid retention, poor digestion and restless sleep. Clinical research on fu ling alone is scarce.
North America · Herb · № 171
Oenothera biennis
The seed oil contains gamma-linolenic acid and is sold for eczema, premenstrual symptoms and hot flushes. NCCIH reports it does not help eczema and that evidence for other conditions is insufficient.
North 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.
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.
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.
Europe · Herb · № 56
Achillea millefolium
Traditionally used to stop bleeding from minor wounds, for fevers and colds, and as a digestive bitter. Clinical evidence is limited.
Europe · Food · № 90
Rubus idaeus
The fruit is a nutritious berry. Raspberry leaf has been used in folk medicine in late pregnancy to ease labour; convincing evidence is lacking.
North America · Herb · № 994
Gillenia trifoliata (syn. Porteranthus trifoliatus)
A perennial of the rose family with three-parted leaves and loose sprays of white or pale pink flowers with five narrow petals. The root is emetic and purgative; it was listed in the United States Pharmacopeia as American ipecac.
Europe · Herb · № 81
Juniperus communis
The berries are traditionally used as a diuretic, for digestive complaints and externally for joint pain. Clinical evidence is limited.
Asia · Herb · № 402
Acorus calamus
Traditionally attributed effects: carminative, tonic, stimulating; restores throat and voice (singers), improves concentration/clear thinking, for flatulence and heartburn.
Europe · Herb · № 86
Plantago major
The leaf is traditionally bruised and applied to insect bites, small wounds and grazes, and taken as tea for coughs. Clinical evidence is limited.
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.