From plant to use
Hot water poured over leaves and flowers: the simplest and most widely used preparation.
For an infusion you pour hot water over soft plant parts such as leaves, flowers and fine herbs and let them steep, covered. Flavour and aroma pass into the water without long heating. Almost every tradition knows this form, from European herbal teas and South American mate to North African mint tea.
Registry
Herbs on this site whose description mentions this preparation. That does not mean every herb is safe to prepare yourself: read the safety information for each one.
CautionSouth America · Herb · № 919
Phyllanthus niruri (en P. stipulatus, P. urinaria)
A small herb with rows of fine leaflets and tiny fruits beneath them. In experiments it inhibited the formation of kidney stone crystals and acted as a diuretic; small studies in people do not yet give clear evidence.
CautionAsia · Herb · № 766
Rosa laevigata
Traditionally attributed effects: holds in the essence and curbs diarrhoea and frequent urination.
CautionSouth America · Herb · № 862
Fuchsia magellanica
The wild fuchsia, with drooping red and purple flowers. Traditionally as a diuretic and for fever; research is lacking.
CautionSouth America · Herb · № 867
Fragaria chiloensis
A wild strawberry with large, fragrant fruits, one of the parents of the garden strawberry. The leaf contains tannins.
CautionSouth 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.
CautionSouth America · Herb · № 894
Mutisia acuminata
A climbing shrub with tendrils and striking orange-red flowers. Quercetin and arbutin are among the compounds found in it; its effect in people has not been studied.
CautionAsia · Food · № 636
Ziziphus jujuba
Traditionally attributed effects: sweet and strengthening in fatigue, anaemia and low energy; builds strength and blood and softens herbal dishes.
CautionAsia · Herb · № 558
Swertia chirata
Traditionally attributed effects: bitter tonic, stomachic, expels worms, laxative, cleansing, antidiarrhoeal, antipyretic; for intermittent fever, skin diseases, intestinal worms, asthma, hiccups and vomiting, gout; scorpion stings.
CautionAsia · Herb · № 124
Chrysanthemum × morifolium
The flowers (ju hua) are used in Chinese medicine as a 'cooling' remedy for colds with fever, headaches and tired, red eyes. Clinical evidence is limited.
CautionEurope · Herb · № 225
Cichorium intybus
Traditionally attributed effects: diuretic, laxative, tonic.
CautionEurope · Herb · № 85
Melissa officinalis
Traditionally used for restlessness, sleep problems and a nervous stomach; externally for cold sores. Small studies suggest a mild calming effect, but evidence is limited.
CautionSouth America · Herb · № 378
Aloysia citrodora
Traditionally attributed effects: relaxing, helps you fall asleep.
CautionSouth America · Herb · № 183
Erythroxylum coca
The leaf contains a small amount of cocaine and other alkaloids. Chewing it or drinking it as tea is used in the Andes against hunger, fatigue and altitude sickness; evidence for the latter is limited. Cocaine, the first local anaesthetic and today mainly an addictive drug, was isolated from the leaf.
South America · Herb · № 913
Gentianella bicolor
A small, very bitter herb of the gentian family, related to hercampuri. Gentians contain bitter compounds that stimulate digestion. Clinical studies are lacking.
CautionNorth America · Herb · № 579
Larrea divaricata
Traditionally attributed effects: astringent, stimulating, cleansing, diuretic; detoxifies the liver and body, anti-inflammatory, for arthritis, strengthens bladder and kidneys, externally for haemorrhoids, boils, bedsores and bruises.
CautionSouth America · Herb · № 856
Grimolobium glandulosum (syn. Otholobium glandulosum, Psoralea glandulosa)
A shrub of the pea family with glandular, fragrant leaves. Traditionally used for digestive complaints, diarrhoea and on wounds; good research is lacking.
CautionCentral America and the Caribbean · Herb · № 928
Turnera diffusa
A small, woody shrub with small, strongly scented leaves and yellow flowers. Contains flavonoids such as apigenin and acacetin, terpenes and a small amount of cyanogenic glycosides. Considered mildly calming and uplifting; which substances cause this is not known.
CautionNorth America · Herb · № 189
Pinus spp.
The scent of needles and resin is experienced as fresh and cleansing. Pine buds and needles contain essential oil and vitamin C; a medicinal effect has hardly been studied.
Caution
CautionAsia · Herb · № 243
Artemisia dracunculus
A culinary herb with an aniseed-like taste. The fresh leaf slightly numbs the tongue and was formerly chewed for toothache and used to stimulate the appetite. It contains estragole; large amounts are not recommended.
CautionEurope · Herb · № 105
Viola tricolor
Traditionally used for skin conditions such as eczema and cradle cap, and for coughs. There is little clinical research.
CautionAsia · Herb · № 409
Alstonia scholaris
Traditionally attributed effects: stimulating, bitter tonic, astringent, expectorant, fever-reducing, antipyretic; quinine substitute for intermittent fever, for indigestion, weakness, skin diseases, liver complaints, chronic diarrhoea; promotes milk flow, expels worms.
CautionAsia · Herb · № 394
Abroma augusta
Traditionally attributed effects: leaves and stem soothing, root bark promotes menstruation; for painful menstruation, regulates menstruation, uterine tonic, for gonorrhoea; can cause skin irritation.
CautionAfrica · 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.
CautionNorth America · Herb · № 966
Oplopanax horridus
An ivy-like shrub with large, hand-shaped leaves and spines over the whole stem and the leaf veins. Research into a blood-sugar-lowering effect is at an early stage.
CautionEurope · 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.
CautionNorth 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.
CautionEurope · Herb · № 289
Centaurium erythraea
Traditionally attributed effects: bitter, stimulates the liver.
CautionEurope · Herb · № 107
Teucrium chamaedrys
Formerly used as a digestive bitter, for gout and as a slimming aid. The risk of liver damage outweighs any possible benefit.
CautionEurope · Herb · № 111
Solidago virgaurea
In Europe it is used to flush the urinary tract in mild complaints and is listed in European herbal monographs as a traditional remedy. Clinical evidence is limited.
CautionAsia · Herb · № 585
Epimedium grandiflorum
Traditionally attributed effects: aphrodisiac, diuretic, tonic; increases libido, helps with erectile problems and fertility, strengthens the bladder sphincter and kidney function.
CautionOceania · Food · № 177
Grewia retusifolia
The small fruits are edible; the name dysentery bush refers to its traditional use for diarrhoea. There is no clinical research.
CautionCentral America and the Caribbean · Herb · № 460
Dysphania ambrosioides (syn. Chenopodium ambrosioides)
A strong-smelling culinary herb traditionally used against intestinal worms and wind. The essential oil contains ascaridole, which kills worms but is also toxic to humans.
CautionEurope · Herb · № 193
Fraxinus excelsior
The leaf was used as a mild diuretic and laxative and for gout. There is little research; a medicinal effect has not been shown.
CautionCentral America and the Caribbean · Herb · № 820
Artemisia ludoviciana
A bitter, aromatic herb used in Mexico for stomach ache and digestive complaints.
CautionOceania · Herb · № 172
Eucalyptus globulus
Eucalyptus oil is used for coughs and blocked noses with colds and externally for muscle pain; the European Medicines Agency recognises these as traditional uses. Strong clinical evidence is limited.