Elymus is a genus of perennial plants with approximately 150 species in the grass family, related to rye, wheat, and other widely grown cereal grains.Linnaeus, Carl von. 1753. Species Plantarum 1: 83-84
Elymus is a cosmopolitan genus, represented by species across all continents of the world. Common names include couch grass, wild rye and wheatgrass.Flora of China Vol. 22 Page 400 披碱草属 pi jian cao shu Elymus Linnaeus, Sp. Pl. 1: 83. 1753. Flora of Pakistan Elymus Linn., Sp. Pl. 1:83. 1753. Gen. Pl., ed. 5. 36. 1754; Tzvelev, Poaceae URSS 106. 1976; Melderis in Tutin et al., Fl. Eur. 5:192. 1980. Altervista Flora Italiana genere Elymus photos and distribution maps for several speciesBiota of North America Program 2013 county distribution maps
The genus name Elymus comes from the Greek ἔλυμος (élumos) "foxtail millet, Setaria italica".
Species , Plants of the World Online accepted 173 species and 19 hybrids:
Elymus abolinii Elymus aenaeanus Elymus afghanicus Elymus africanus Elymus alaskanus Elymus albicans Elymus alienus Elymus alpinus Elymus altissimus Elymus amgensis Elymus angsaiensis Elymus angulatus Elymus angustispiculatus Elymus anthosachnoides Elymus antiquus Elymus × apiculatus Elymus arcuatus Elymus arizonicus Elymus atratus Elymus bakeri Elymus barbicallus Elymus barystachyus Elymus × bobrovicus Elymus borianus Elymus × brachyphyllus Elymus brevipes Elymus burchan-buddae Elymus buschianus Elymus cacuminis Elymus caesifolius Elymus caianus Elymus californicus , California bottlebrush grass Elymus canadensis Elymus caninus Elymus caucasicus Elymus cheniae Elymus churchii Elymus ciliaris Elymus clivorum Elymus colorans Elymus confusus Elymus cordilleranus Elymus coreanus Elymus curtiaristatus Elymus curvatiformis Elymus curvatus Elymus × czilikensis Elymus czimganicus Elymus debilis Elymus dentatus Elymus diversiglumis Elymus dolichatherus Elymus dolichorhachis Elymus × dorei Elymus dorudicus Elymus durus Elymus duthiei Elymus × ebingeri Elymus edelbergii Elymus elymoides Elymus erosiglumis Elymus × fedoronchukii Elymus fedtschenkoi Elymus festucoides Elymus fibrosus Elymus formosanus Elymus glaberrimus Elymus glaucissimus Elymus glaucus Elymus gmelinii Elymus grandis Elymus × hansenii Elymus hirsutus Elymus hitchcockii Elymus hoffmannii Elymus hondae Elymus hongyuanensis Elymus hordeoides Elymus humilis Elymus hybridus Elymus hystrix Elymus × incertus Elymus × interjacens Elymus interruptus Elymus intramongolicus Elymus ircutensis Elymus jacquemontii Elymus jacutensis Elymus karakabinicus Elymus kasteki Elymus khokhrjakovii Elymus kuramensis Elymus lancangensis Elymus lanceolatus Elymus laxinodis Elymus lazicus Elymus leiotropis Elymus lenensis Elymus lolioides Elymus longearistatus Elymus longifolius Elymus macgregorii Elymus macrochaetus Elymus macrourus Elymus magellanicus Elymus magnicaespes Elymus magniherbosus Elymus magnipodus Elymus × maltei Elymus margaritae Elymus maroccanus Elymus medius Elymus mendocinus Elymus × mossii Elymus multisetus Elymus mutabilis Elymus nakaii Elymus nepalensis Elymus nipponicus Elymus nodosus Elymus × nothus Elymus × palmerensis Elymus panormitanus Elymus patagonicus Elymus pendulinus Elymus petrovii Elymus praeruptus Elymus probatovae Elymus pseudocaninus Elymus × pseudorepens Elymus puberulus Elymus pulanensis Elymus pungens Elymus purpurascens Elymus qingnanensis Elymus repens Elymus retroflexus Elymus rhodopaeus Elymus riparius Elymus russellii Elymus sajanensis Elymus × saundersii Elymus × saxicola Elymus scabridulus Elymus scabrifolius Elymus scabriglumis Elymus schugnanicus Elymus sclerophyllus Elymus scribneri Elymus semicostatus Elymus serotinus Elymus serpentinus Elymus shandongensis Elymus shirazicus Elymus shouliangiae Elymus sibinicus Elymus sibiricus Elymus sikkimensis Elymus sinkiangensis Elymus sinoflexuosus Elymus sinosubmuticus Elymus smithii Elymus × spurius Elymus stebbinsii Elymus stenostachyus Elymus strictus Elymus svensonii Elymus sylvaticus Elymus tenuis Elymus tenuispicatus Elymus tenuispicus Elymus texensis Elymus tibeticus Elymus tilcarensis Elymus transhyrcanus Elymus trichospicula Elymus troctolepis Elymus uralensis Elymus × versicolor Elymus villosus Elymus violaceus Elymus virginicus Elymus viridulus Elymus vulpinus Elymus wawawaiensis Elymus yangiae Elymus yubaridakensis Elymus × yukonensis Elymus yushuensis Elymus zadoiensis Elymus zejensis Elymus zhui
Older classifications Many species once considered members of Elymus are now regarded as better suited to other genera: Agropyron, Anthosachne, Brachypodium, Cenchrus, Crithopsis, Heteranthelium, Jouvea, Kengyilia, Leymus, Psathyrostachys, Stenostachys, Taeniatherum, Thinopyrum etc.
References
External links
Jepson Manual Treatment