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.
Asia · Herb · № 17
Withania somnifera
An Ayurvedic medicinal plant. Some preparations have been studied for stress and sleep, but evidence is limited and products vary.
Asia · Herb · № 149
Astragalus membranaceus
In Chinese medicine an important strengthening herb ('qi tonic') for fatigue, catching colds easily and sweating. NCCIH notes there is little reliable human research.
Central America and the Caribbean · Food · № 166
Persea americana
A fruit rich in monounsaturated fats, fibre and potassium; it fits a diet that is favourable for cholesterol. Avocado oil is used in skin care.
Asia · Herb · № 36
Panax ginseng (ook P. quinquefolius)
Research consists mostly of small, short studies; there is little evidence of health effects.
Asia · Herb · № 123
Citrus × aurantium
The dried unripe fruit (zhi shi) and peel are used in Chinese medicine for bloating and sluggish digestion. NCCIH warns that weight-loss products containing bitter orange (synephrine) pose risks to the heart and blood pressure.
Europe · Other · № 74
Fucus vesiculosus
A brown seaweed rich in iodine; formerly used for an underactive thyroid and for weight loss. Weight-loss claims are unproven.
Europe · Food · № 101
Vaccinium myrtillus en V. vitis-idaea
Rich in anthocyanins. Dried berries are an old remedy for diarrhoea. NCCIH reports there is not enough evidence for eye, blood-vessel or other claims.
North America · Herb · № 34
Hydrastis canadensis
There is not enough evidence to determine whether goldenseal helps any health condition.
Asia · Herb · № 120
Angelica sinensis
In Chinese medicine one of the most important herbs to 'nourish the blood', especially for menstrual complaints. Western studies found no clear effect on menopausal symptoms.
Asia · 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.
Asia · Herb · № 138
Salvia miltiorrhiza
The red root is used in Chinese medicine to 'promote blood circulation', especially for heart and vascular complaints. There are many studies in China, often of limited quality.
Africa · Herb · № 24
Harpagophytum procumbens
The tuberous roots are used in folk medicine for pain. Research suggests a possible limited effect on low back pain; the evidence is of moderate quality at best.
Africa · Herb · № 118
Trigonella foenum-graecum
The seed has been studied for blood sugar and for increasing breast milk. NCCIH reports there is not enough strong evidence for these uses.
Europe · Herb · № 311
Melilotus officinalis
Traditionally attributed effects: soothing, diuretic, antispasmodic, anticoagulant.
Asia · Herb · № 37
Ginkgo biloba
There is no conclusive evidence that ginkgo helps any health condition. A modest effect on dementia symptoms is possible, but results are inconsistent.
South America · Herb · № 163
Paullinia cupana
The seeds contain about twice as much caffeine as coffee beans. Guarana is used in energy drinks and soft drinks; its stimulating effect comes from caffeine.
Asia · Herb · № 142
Commiphora wightii (syn. C. mukul)
The resin is used in Ayurveda for joint complaints, overweight and high cholesterol. A US study found no reduction in cholesterol; LDL even rose slightly.
Europe · Herb · № 87
Primula veris
The root contains saponins and is traditionally used to loosen phlegm in coughs; the flowers as a calming tea. There is some research on combination cough preparations.
Europe · Herb · № 82
Leonurus cardiaca
Traditionally used for stress-related palpitations, nervousness and menstrual complaints. Clinical research is scarce.
Europe · Herb · № 59
Althaea officinalis
Root and leaf are rich in mucilage that forms a soothing layer; used for dry coughs, throat irritation and an irritated stomach. Evidence is modest.
Europe · Herb · № 77
Humulus lupulus
The cones are traditionally used for restlessness and sleep problems, often with valerian. There are hints of a mild sedative effect, but evidence is limited.
Europe · Herb · № 19
Matricaria chamomilla (Duitse kamille)
Flowers are used in teas and topical or oral products. Reliable evidence is insufficient for most claimed conditions.
Africa · Herb · № 811
Lessertia frutescens (syn. Sutherlandia frutescens)
A shrub used as a tonic and for a range of complaints. Claims against cancer or HIV are unproven.
South America · Herb · № 33
Uncaria tomentosa
There is no conclusive scientific evidence that cat's claw helps any health condition.
South America · Herb · № 31
Cinchona spp. (o.a. C. officinalis, C. pubescens)
The bark contains quinine and other alkaloids. Quinine became an important antimalarial, but using the bark yourself is unsafe and is not malaria treatment.
Africa · Food · № 12
Allium sativum
A food with a long history of use. Supplement research suggests only limited effects and does not establish a treatment.
Europe · Herb · № 92
Scrophularia nodosa (en S. ningpoensis)
Used in Western herbalism for skin conditions such as eczema and psoriasis and for swollen glands. There is no good clinical evidence.
Europe · Herb · № 47
Crataegus monogyna, C. laevigata (en C. pinnatifida)
Studied for heart failure with conflicting results. For most conditions there is little or no good evidence.
Europe · Herb · № 96
Tanacetum parthenium
Best known for preventing migraine. NCCIH notes the evidence is conflicting: some studies find a small effect, others do not.
Oceania · Food · № 50
Morinda citrifolia
Traditionally used for colds, infections, fever, and stomach complaints. There is no good evidence of treatment effects.
Europe · Herb · № 97
Taraxacum officinale
The leaf is mildly diuretic; the bitter root was used for the liver and digestion. NCCIH notes there is little human 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.
Asia · Herb · № 132
Paeonia lactiflora en P. suffruticosa
The peeled root (bai shao, white peony) is used in Chinese medicine for cramps, period pain and muscle pain. There are studies of combination formulas but few of peony alone.
Central America and the Caribbean · Herb · № 167
Guaiacum officinale
The resin and wood were used for rheumatic complaints and gout; guaiac resin is still used in the guaiac test for blood in stool. There is no modern evidence for its classic uses.
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.