Asarum


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Asarum

 

(wild ginger), a genus of plants of the family Aristolochiaceae (birthwort). They are perennial grasses with creeping rhizomes and shortened stems. The alternate entire leaves are on long stalks. The flowers are solitary, bisexual, and apical. There is a three-parted perianth, which is persistent with the fruits. The plants have 12 stamens. The fruit is a capsule. There are approximately 100 species, distributed primarily in East Asia, Europe, the Caucasus, Western Siberia, and North America. Of the three species found in the USSR, the most common is asarabacca (Asarum europaeum), which measures 2–10 cm tall and is covered with short hairs. The plant has stems with three scale-like leaves and two to three (or five) round, budlike, dark green wintering leaves. The seeds are juicy and are distributed by ants. The asarabacca grows primarily in the broad-leaved forests of the European USSR and in Western Siberia. It smells and tastes like pepper; it contains an essential oil with a poisonous volatile substance, azaron.

References in periodicals archive ?
Holocene migration of Asarum canadense and other woodland herbs
Seed predation experiments here were conducted along gentle slopes where patches of Asarum canadense are found, and not in the floodplain forest.
In the FDA's prohibited plant list, the AA-containing plants also include species of the genus Asarum (Fam.
In addition, the following assemblage of uniquely combined morphological characters suggests that Aristolochia, Asarum, Euglypha, Holostylis, Saruma, and Thottea form a monophyletic group: alternate, distichous leaves with reticulate, palmate venation; adaxial prophylls; oil cells; perianth essentially trimerous; androecium and gynoecium essentially hexamerous; and pollen in monosulcate or inaperturate monads.
Mesic Group-selection openings had significantly greater cover of Asarum group species.
In the present study the sieve-element plastids of putative basal taxa of monocotyledons and their (formerly) related families are described and compared with those of Asarum, Saruma, and other basal dicotyledons.
Asarum y Saruma son los unicos generos de dicotiledoneas que poseen plastidos tipo P2c (Behnke, 1971a, b, 1981, 1988, 1991;Behnke & Barthlott, 1983); este tipo de plastidos corresponde a uno de los caracteres mas generalizados en las monocotiledoneas.
More specifically used for verifying the condition of textiles, in both OA and MA texts, is the verb asarum.
Keywords: Microbial composition, eubacterial diversity, TRFLP, Euonymus fortunei, Asarum canadense
The spring herbaceous flora includes Asarum canadense, Cardamine concatenata, C.
Common spring and early summer flowering forbs include Allium burdickii, Arisaema triphyllum, Asarum canadense, Cardamine concatenata, C.