The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Draba

(whitlow grass), a genus of plants of the family Cruciferae. They are low-growing perennial and, less frequently, biennial or annual herbs; some are subshrubs. They have entire leaves, which are often in a rosette. The flowers are small, yellow or white, and racemose. The fruit is a silicle or, less frequently, a pod. There are approximately 300 species, distributed in temperate and cold regions of Eurasia and America. In the USSR there are over 90 species, found predominantly in the arctic and the alpine zones, along arid, rocky slopes, rocks, and small meadows. The annual Draba nemorosa grows on dry, open slopes, meadows, and steppes; it is also a weed in fields. The perennial D. sibirica is found primarily in alpine meadows, in the tundra, and on limestone slopes. Many species are cultivated as ornamentals.

REFERENCE

Tolmachev, A. I. “Krupka— Draba L.” In Flora SSSR, vol. 8. Moscow-Leningrad, 1939.

T. V. EGOROVA

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Novaia Zemlia

References in periodicals archive

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The proposed pioneer species are Meconopsis racemosa, Meconopsis horridula, Arenaria delavayi, Draba oreodoxa, Cremanthodium smithianum, Polygonum macrophyllum, and Carex capilliformis.

Analysis of herbaceous plant succession and dispersal mechanisms in deglaciated terrain on Mt. Yulong, China

Ao lado disso, alguns itens (1, 4, 11, 12, 15) apresentaram DIF somente de acordo com o indice apresentado em logits (Linacre & Wright, 2009; Tennant & Pallant, 2007), e nenhum dos itens apresentou DIF somente no criterio proposto por Draba (1977), sugerindo que esse e um criterio mais rigoroso em relacao ao de logits.

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Aunque la SMO no presenta comunidades de vegetacion alpina, en las cimas de los picos mas altos (Cerro Gordo, Mohinora, Huehuento y otros), por encima de los 3200 m existe vegetacion herbacea baja (plantas enanas de Sedum, Draba, Senecio, Poa, Bouteloua, Muhlenbergia), asi como liquenes y musgos, caracteristicos de vegetacion subalpina (Gonzalez Elizondo et al., 2007).

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Friday paper presentations

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Some genera that were restricted to the Austral-Antarctic regions migrated from the south temperate zones along the Andes as they rose from the lowlands, whereas several important herbaceous genera of the Holarctic region, such as Cerastium, Hypochaeris, Draba, and Lupinus arrived to paramo along the northern migration route after formation of the Isthmus of Panama.

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Assessment of Abiotic Status of Neeru Nallah, Doda, J&K