oat grass

oat grass
any of several grasses of the genus Arrhenatherum or Danthonia, esp. A. elatius, native to Europe, having a purplish-green flowering panicle.
[1570-80]

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▪ plant
      any of the perennial plants of two genera of grasses, Arrhenatherum and Danthonia (family Poaceae). Approximately six species of tall grasses, native to temperate Europe and Asia, constitute the genus Arrhenatherum. Tall oat grass (A. elatius), which has been introduced into various countries as a pasture grass, grows wild in many areas and is considered a weed, especially A. elatius variety bulbosum, commonly called onion couch for its bulblike basal stems. Most of the more than 100 species of the genus Danthonia are native to temperate regions of the Southern Hemisphere. They are important forage grasses in Australia, New Zealand, and South America. Australian species are commonly called wallaby grasses. Poverty oat grass (D. spicata) is a grayish green, mat-forming species and grows on dry, poor soil in many parts of North America.

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Universalium. 2010.

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Look at other dictionaries:

  • Oat grass — Oat Oat ([=o]t), n.; pl. {Oats} ([=o]ts). [OE. ote, ate, AS. [=a]ta, akin to Fries. oat. Of uncertain origin.] 1. (Bot.) A well known cereal grass ({Avena sativa}), and its edible grain, used as food and fodder; commonly used in the plural and in …   The Collaborative International Dictionary of English

  • oat grass — oat′ grass n. bot (boi pln) any of several grasses of the genus Arrhenatherum or Danthonia having a purplish green flowering panicle • Etymology: 1570–80 …   From formal English to slang

  • oat grass — n. any of various oatlike grasses; esp., any of several grasses (genera Arrhenatherum and Danthonia) growing on hillsides and in woods …   English World dictionary

  • oat grass — noun 1. : wild oat 1a 2. : one of several grasses of the genera Danthoina and Trisetum 3. a. Australia : ulla grass …   Useful english dictionary

  • oat grass — avižuolė statusas T sritis vardynas apibrėžtis Miglinių (Poacecae) šeimos augalų gentis (Arrhenatherum). atitikmenys: lot. Arrhenatherum angl. oat grass vok. Glatthafer rus. райграс; райграс французкий lenk. żyźnica; owsik; rajgras …   Dekoratyvinių augalų vardynas

  • oat grass — noun a wild grass which resembles the oat. [Avenula and other genera.] …   English new terms dictionary

  • oat grass — noun Date: 1578 wild oat 1a; broadly any of several grasses resembling the oat …   New Collegiate Dictionary

  • oat grass — noun One of the various Eurasian and African grasses Arrhenatherum and Danthonia …   Wiktionary

  • Blue oat grass — Taxobox name = Blue oat grass image width = 220px regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Poales familia = Poaceae subfamilia = Pooideae tribus = Aveneae genus = Helictotrichon species = H. sempervirens binomial =… …   Wikipedia

  • false oat grass — aukštoji avižuolė statusas T sritis vardynas apibrėžtis Miglinių šeimos pašarinis augalas (Arrhenatherum elatius), paplitęs šiaurės Afrikoje, Europoje ir Azijoje. atitikmenys: lot. Arrhenatherum elatius angl. false oat grass; French raygrass;… …   Lithuanian dictionary (lietuvių žodynas)

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