Genus Asarum L.
Род 314 (1). КОПИТНИК —ASARUM L
L., Sp. PI. ed. 1 (1753) 442 ; Gen. PI. ed. 5 (1754) 201
Perennial grasses with creeping rhizome. Stem short, accumbens. Leaves successive, entire, goals, kidney, heart-to sagittal. The flowers single, on the top. Perianth regular, in one round, trilobate, persisting in the fetus. Stamens 12, arranged in two circles, free or partially fused with the ovary. Fiber filaments short. Ovary inferior, 6, rarely 4-well, with many (rarely 1) ovules, ordered in two series each well. The bars 6, rarely 4, free or fused to a column with 6-stigma separately. Fruit nearly spherical, bursting is unevenly box. Seeds oblong. Pollinated by small insects or self-pollinating.
Fam: Aristolochiaceae Juss.
Genus: Asarum L.
English Name: Wild ginger
From „Флора на НР България”, том IV, БАН, София, (1970)
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Asarum is a genus of plants in the birthwort family Aristolochiaceae, commonly known as wild ginger.
Asarum is the genitive plural of the Latin āsa (an alternate form of āra) meaning altar or sanctuary.
Asarum is a genus of low-growing herbs distributed across the temperate zones of the Northern Hemisphere, with most species in East Asia (China, Japan, and Vietnam) and North America, and one species in Europe. Biogeographically, Asarum originated in Asia.
They have characteristic kidney-shaped leaves, growing from creeping rhizomes, and bear small, axillary, brown or reddish flowers.
The plant is called wild ginger because the rhizome tastes and smells similar to ginger root, but the two are not particularly related. However, the FDA warns against consuming Asarum, as it is nephrotoxic and contains the potent carcinogen aristolochic acid.  The birthwort family also contains the genus Aristolochia, known for carcinogens.
Wild ginger favors moist, shaded sites with humus-rich soil. The deciduous, heart-shaped leaves are opposite, and borne from the rhizome which lies just under the soil surface. Two leaves emerge each year from the growing tip. The curious jug-shaped flowers, which give the plant an alternate name, little jug, are borne singly in spring between the leaf bases.
Wild ginger can easily be grown in a shade garden, and makes an attractive groundcover.
Traditionally, the genus Asarum was considered as a single genus with about 85 species. However, a trend exists among botanists to segregate the genus into separate genera, based on considerations of chromosome number and floral morphology .
From Wikipedia, the free encyclopedia
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References: „Флора на НР България”, том IV, БАН, София, (1970), Wikipedia, the free encyclopedia
Distribution in Bulgaria: (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.
This Genus is presented in Bulgaria with only one species:
Asarum europaeum L. - Asarabacca, European wild ginger, ...
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