Herbs

Osmorhiza is a genus of perennial herbs, known generally as sweet cicely, sweetcicely, or sweetroot. Most species are native to North America, but some grow in South America and Asia. Some species are used for medicinal purposes, but have dangerous lookalikes. The fruits of this plant have barbs on the end allowing them to stick to clothing, fur, or feathers.

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thumb|Stevia rebaudiana Stevia () is a sweet sugar substitute that is about 50 to 300 times sweeter than sugar. It is extracted from the leaves of Stevia rebaudiana, a plant native to areas of Paraguay and Brazil. The active compounds in stevia are steviol glycosides (mainly stevioside and rebaudioside). Stevia is heat-stable, pH-stable, and not fermentable. Humans cannot metabolize the glycosides in stevia, and it therefore has zero calories. Its taste has a slower onset and longer duration than that of sugar, and at high concentrations some of its extracts may have an aftertaste describ

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Lippia is a genus of flowering plants in the verbena family, Verbenaceae. It was named after Augustin Lippi (1678–1705), a French naturalist and botanist (with Italian origins). He was killed in Abyssinia. The genus contains roughly 200 species of tropical shrubs that are found around the world. Plants are fragrant due to their essential oils, which vary between species but may include estragole, carvacrol, linalool or limonene. The leaves of certain species, such as L. graveolens, can be used as a culinary herb similar to oregano.

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aromatic herb

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thumb|right|200px|A root of cultivated Korean ginseng (Panax ginseng)

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species of plant, Black Turmeric

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thumb|upright|Beer brewed following a 13th-century recipe using gruit herbs

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aqueous product of the hydrodistillation of volatile organic substances

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thumb|Raw hemp shives

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Emmenagogues (also spelled emmenagogs) are herbs which stimulate blood flow in the pelvic area and uterus; some stimulate menstruation. Women may use emmenagogues to stimulate menstrual flow when menstruation is absent for reasons other than pregnancy, such as hormonal disorders or conditions like oligomenorrhea.

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thumb|right|Chemical structure of scammonin|scammonin I, one of the primary chemical constituents of jalap Jalap is a cathartic drug, largely obsolete in Western medicine, consisting of the tuberous roots of Ipomoea purga, a convolvulaceous plant growing on the eastern declivities of the Sierra Madre Oriental of Mexico at an elevation of above sea level, more especially about the neighbourhood of Chiconquiaco on the eastern slope of the Cofre de Perote in the state of Veracruz.

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