Elymus (plant)

Elymus
	Elymus canadensis
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Pooideae
Supertribe:	Triticodae
Tribe:	Triticeae
Genus:	Elymus; L.
Type species
	Elymus sibiricus; L.
Synonyms
	Asperella Humb.; Braconotia Godr.; Campeiostachys Drobow; Chretomeris Nutt. ex J.G. Sm. nom. inval.; Clinelymus (Griseb.) Nevski; Crithopyrum Steud.; Cryptopyrum Heynh. nom. inval.; Elysitanion Bowden nom. illeg.; Elytrigia Desv.; Elytrigium Benth.; Goulardia Husn.; Gymnostichum Schreb.; Hystrix Moench; Lophopyrum Á.Löve; Pascopyrum Á.Löve; Peridictyon Seberg; Polyantherix Nees; Psammopyrum Á.Löve; Pseudoroegneria (Nevski) Á.Löve; Roegneria K.Koch; Semeiostachys Drobow.; Sitanion Raf.; Sitospelos Adans.; Terrellia Lunell; × Elymotrigia Hyl.; × Elysitanion Bowden; × Pseudelymus Barkworth & D.R.Dewey; × Terrelymus B.R.Baum;

Elymus is a genus of perennial plants with approximately 150 species^[5] in the grass family, related to rye, wheat, and other widely grown cereal grains.^[6]

Elymus is a cosmopolitan genus, represented by species across all continents of the world.^[7] Common names include couch grass, wildrye and wheatgrass.^[8]^[9]^[10]^[11]

Species

As of 2024^[update], Plants of the World Online accepts 172 species:^[12]

Elymus abolinii (Drobow) Tzvelev
Elymus aenaeanus (Hohla & H.Scholz) W.Lippert & Meierott ex Hohla
Elymus afghanicus (Melderis) G.Singh
Elymus africanus Á.Löve
Elymus alaskanus (Scribn. & Merr.) Á.Löve
Elymus albicans (Scribn. & J.G.Sm.) Á.Löve
Elymus alienus (Keng) S.L.Chen
Elymus alpinus L.B.Cai
Elymus altissimus (Keng & S.L.Chen) Á.Löve ex B.Rong Lu
Elymus amgensis Tzvelev
Elymus angsaiensis S.L.Lu & Y.H.Wu
Elymus angulatus J.Presl
Elymus angustispiculatus S.L.Chen & G.H.Zhu
Elymus anthosachnoides (Keng & S.L.Chen) Á.Löve ex B.Rong Lu
Elymus antiquus (Nevski) Tzvelev
Elymus × apiculatus (F.A.Tscherning) Barina
Elymus arcuatus (Golosk.) Tzvelev
Elymus arizonicus (Scribn. & J.G.Sm.) Gould
Elymus atratus (Nevski) Hand.-Mazz.
Elymus bakeri (E.E.Nelson) Á.Löve
Elymus barbicallus (Ohwi) S.L.Chen
Elymus barystachyus L.B.Cai
Elymus × bobrovicus (Kotukhov) Olshanskyi
Elymus borianus (Melderis) Cope
Elymus × brachyphyllus (Boiss. & Hausskn.) Á.Löve
Elymus brevipes (Keng & S.L.Chen) S.L.Chen
Elymus burchan-buddae (Nevski) Tzvelev
Elymus buschianus (Roshev.) Tzvelev
Elymus cacuminis B.Rong Lu & B.Salomon
Elymus caesifolius Á.Löve ex S.L.Chen
Elymus caianus S.L.Chen & G.H.Zhu
Elymus californicus (Bol. ex Thurb.) Gould
Elymus canadensis L.
Elymus caninus (L.) L.
Elymus caucasicus (K.Koch) Tzvelev
Elymus cheniae (L.B.Cai) G.H.Zhu
Elymus churchii J.J.N.Campb.
Elymus ciliaris (Trin.) Tzvelev
Elymus clivorum Melderis
Elymus colorans (Melderis) Á.Löve
Elymus confusus (Roshev.) Tzvelev
Elymus cordilleranus Davidse & R.W.Pohl
Elymus coreanus Honda
Elymus curtiaristatus (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus curvatiformis (Nevski) Á.Löve
Elymus curvatus Piper
Elymus × czilikensis (Drobow) Tzvelev
Elymus czimganicus (Drobow) Tzvelev
Elymus debilis (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus dentatus (Hook.f.) Tzvelev
Elymus diversiglumis Scribn. & C.R.Ball
Elymus dolichatherus (Keng) S.L.Chen
Elymus dolichorhachis S.L.Lu & Y.H.Wu
Elymus × dorei (Bowden) Barkworth & D.R.Dewey
Elymus dorudicus (Assadi) Assadi
Elymus durus (Keng) S.L.Chen
Elymus duthiei (Melderis) G.Singh
Elymus × ebingeri G.C.Tucker
Elymus edelbergii (Melderis) O.Andersson & Podlech
Elymus elymoides (Raf.) Swezey
Elymus erosiglumis Melderis
Elymus × fedoronchukii Olshanskyi
Elymus fedtschenkoi Tzvelev
Elymus festucoides (Maire) Ibn Tattou
Elymus fibrosus (Schrenk) Tzvelev
Elymus formosanus (Honda) Á.Löve
Elymus glaberrimus (Keng & S.L.Chen) S.L.Chen
Elymus glaucissimus (Popov) Tzvelev
Elymus glaucus Buckley
Elymus gmelinii (Trin.) Tzvelev
Elymus grandis (Keng) S.L.Chen
Elymus × hansenii Scribn.
Elymus hirsutus J.Presl
Elymus hitchcockii Davidse
Elymus hoffmannii K.B.Jensen & Asay
Elymus hondae (Kitag.) S.L.Chen
Elymus hongyuanensis (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus hordeoides (Suksd.) Barkworth & D.R.Dewey
Elymus humilis (Keng & S.L.Chen) S.L.Chen
Elymus hybridus (Keng) S.L.Chen
Elymus hystrix L.
Elymus × incertus H.Hartmann
Elymus × interjacens (Melderis) G.Singh
Elymus interruptus Buckley
Elymus intramongolicus (Shan Chen & W.Gao) S.L.Chen
Elymus ircutensis Peschkova
Elymus jacquemontii (Hook.f.) Tzvelev
Elymus jacutensis (Drobow) Tzvelev
Elymus karakabinicus Kotukhov
Elymus kasteki (Popov) Sennikov
Elymus khokhrjakovii Tzvelev
Elymus kuramensis (Melderis) Cope
Elymus lancangensis S.L.Lu & Y.H.Wu
Elymus lanceolatus (Scribn. & J.G.Sm.) Gould
Elymus laxinodis (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus lazicus (Boiss.) Melderis
Elymus leiotropis (Keng) S.L.Chen
Elymus lenensis (Popov) Tzvelev
Elymus lolioides (P.Candargy) Melderis
Elymus longearistatus (Boiss.) Tzvelev
Elymus longifolius (J.G.Sm.) Gould
Elymus macgregorii R.E.Brooks & J.J.N.Campb.
Elymus macrochaetus (Nevski) Tzvelev
Elymus macrourus (Turcz. ex Steud.) Tzvelev
Elymus magellanicus (É.Desv.) Á.Löve
Elymus magnicaespes D.F.Cui
Elymus magniherbosus Charit.
Elymus magnipodus (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus × maltei Bowden
Elymus margaritae A.V.Agaf., Kobozeva & B.Salomon
Elymus maroccanus (Font Quer & Pau) Rivas Mart., Molero Mesa, Marfíl & G.Benítez
Elymus medius Charit.
Elymus mendocinus (Parodi) Á.Löve
Elymus × mossii (Lepage) Barkworth & D.R.Dewey
Elymus multisetus (J.G.Sm.) Burtt Davy
Elymus mutabilis (Drobow) Tzvelev
Elymus nakaii (Kitag.) S.L.Chen
Elymus nepalensis (Melderis) Melderis
Elymus nipponicus Jaaska
Elymus nodosus (Steven ex Griseb.) Melderis
Elymus × nothus (Melderis) G.Singh
Elymus × palmerensis (Lepage) Barkworth & D.R.Dewey
Elymus panormitanus (Parl.) Tzvelev
Elymus patagonicus Speg.
Elymus pendulinus (Nevski) Tzvelev
Elymus petrovii Tzvelev
Elymus praeruptus Tzvelev
Elymus probatovae Tzvelev
Elymus pseudocaninus G.H.Zhu & S.L.Chen
Elymus × pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey
Elymus puberulus (Keng) S.L.Chen
Elymus pulanensis (H.L.Yang) S.L.Chen
Elymus pungens (Pers.) Melderis
Elymus purpurascens (Keng) S.L.Chen
Elymus qingnanensis S.L.Lu & Y.H.Wu
Elymus repens (L.) Gould
Elymus retroflexus B.Rong Lu & B.Salomon
Elymus rhodopaeus Delip.
Elymus riparius Wiegand
Elymus russellii (Melderis) Cope
Elymus sajanensis (Nevski) Tzvelev
Elymus × saundersii Vasey
Elymus × saxicola Scribn. & J.G.Sm.
Elymus scabridulus (Ohwi) Tzvelev
Elymus scabrifolius (Döll) J.H.Hunz.
Elymus scabriglumis (Hack.) Á.Löve
Elymus schugnanicus (Nevski) Tzvelev
Elymus sclerophyllus (Nevski) Tzvelev
Elymus scribneri (Vasey) M.E.Jones
Elymus semicostatus (Steud.) Melderis
Elymus serotinus (Keng) Á.Löve ex B.Rong Lu
Elymus serpentinus (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus shandongensis B.Salomon
Elymus shirazicus Assadi
Elymus shouliangiae (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus sibinicus Kotukhov
Elymus sibiricus L.
Elymus sikkimensis (Melderis) Melderis
Elymus sinkiangensis D.F.Cui
Elymus sinoflexuosus S.L.Chen & G.H.Zhu
Elymus sinosubmuticus S.L.Chen
Elymus smithii (Rydb.) Gould
Elymus × spurius (Melderis) G.Singh
Elymus stebbinsii Gould
Elymus stenostachyus (Melderis) O.Andersson & Podlech
Elymus strictus (Keng) S.L.Chen
Elymus svensonii Church
Elymus sylvaticus (Keng & S.L.Chen) S.L.Chen
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuispicatus Charit.
Elymus tenuispicus (J.L.Yang & Y.H.Zhou) S.L.Chen
Elymus texensis J.J.N.Campb.
Elymus tibeticus (Melderis) G.Singh
Elymus tilcarensis (J.H.Hunz.) Á.Löve
Elymus transhyrcanus (Nevski) Tzvelev
Elymus trichospicula (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus troctolepis (Nevski) Tzvelev
Elymus uralensis (Nevski) Tzvelev
Elymus × versicolor A.P.Khokhr.
Elymus villosus Muhl. ex Willd.
Elymus violaceus (Hornem.) J.Feilberg
Elymus virginicus L.
Elymus viridulus (Keng & S.L.Chen) S.L.Chen
Elymus vulpinus Rydb.
Elymus wawawaiensis J.R.Carlson & Barkworth
Elymus yangiae B.Rong Lu
Elymus yubaridakensis (Honda) Ohwi
Elymus × yukonensis (Scribn. & Merr.) Á.Löve
Elymus yushuensis (L.B.Cai) S.L.Chen & G.H.Zhu
Elymus zadoiensis S.L.Lu & Y.H.Wu
Elymus zejensis Prob.
Elymus zhui S.L.Chen

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.^[13]

References

^ "Kew World Checklist of Selected Plant Families". Retrieved 10 August 2016.
^ Tropicos.org, retrieved 13 February 2016
^ Tropicos.org, retrieved 13 February 2016
^ Tropicos.org, retrieved 13 February 2016
^ Diaz, Oscar (1999). Genetic diversity in Elymus species (Triticeae) with emphasis on the Nordic region. Swedish University of Agricultural Sciences. ISBN 91-576-5493-X.
^ Linnaeus, Carl von. 1753. Species Plantarum 1: 83-84
^ Quattrocchi, Umberto (2006). CRC World Dictionary of grasses: Common names, Scientific names, Eponyms, Synonyms, and Etymology. Vol. 1. CRC Press. pp. 755–787. ISBN 9780849313035.
^ 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 species
^ Biota of North America Program 2013 county distribution maps
^ "Elymus". Plants of the World Online. Royal Botanic Gardens, Kew. 2024. Retrieved 12 July 2024.
^ "The Plant List Elymus". Retrieved 10 August 2016.

External links

Data related to Elymus at Wikispecies
Jepson Manual Treatment
Factsheet from The Intermountain Herbarium - Utah State University

[KewChecklist-1] "Kew World Checklist of Selected Plant Families". Retrieved 10 August 2016.

[2] Tropicos.org, retrieved 13 February 2016

[3] Tropicos.org, retrieved 13 February 2016

[4] Tropicos.org, retrieved 13 February 2016

[5] Diaz, Oscar (1999). Genetic diversity in Elymus species (Triticeae) with emphasis on the Nordic region. Swedish University of Agricultural Sciences. ISBN 91-576-5493-X.

[6] Linnaeus, Carl von. 1753. Species Plantarum 1: 83-84

[CRC-7] Quattrocchi, Umberto (2006). CRC World Dictionary of grasses: Common names, Scientific names, Eponyms, Synonyms, and Etymology. Vol. 1. CRC Press. pp. 755–787. ISBN 9780849313035.

[8] Flora of China Vol. 22 Page 400 披碱草属 pi jian cao shu Elymus Linnaeus, Sp. Pl. 1: 83. 1753.

[9] 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.

[10] Altervista Flora Italiana genere Elymus photos and distribution maps for several species

[11] Biota of North America Program 2013 county distribution maps

[POWO-12] "Elymus". Plants of the World Online. Royal Botanic Gardens, Kew. 2024. Retrieved 12 July 2024.

[PlantList-13] "The Plant List Elymus". Retrieved 10 August 2016.

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Elymus

Elymus canadensis
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Pooideae
Supertribe:	Triticodae
Tribe:	Triticeae
Genus:	Elymus L.
Type species
Elymus sibiricus L.
Synonyms^[1]
Asperella Humb. Braconotia Godr. Campeiostachys Drobow Chretomeris Nutt. ex J.G. Sm. nom. inval.^[2] Clinelymus (Griseb.) Nevski Crithopyrum Steud. Cryptopyrum Heynh. nom. inval.^[3] Elysitanion Bowden nom. illeg.^[4] Elytrigia Desv. Elytrigium Benth. Goulardia Husn. Gymnostichum Schreb. Hystrix Moench Lophopyrum Á.Löve Pascopyrum Á.Löve Peridictyon Seberg Polyantherix Nees Psammopyrum Á.Löve Pseudoroegneria (Nevski) Á.Löve Roegneria K.Koch Semeiostachys Drobow. Sitanion Raf. Sitospelos Adans. Terrellia Lunell × Elymotrigia Hyl. × Elysitanion Bowden × Pseudelymus Barkworth & D.R.Dewey × Terrelymus B.R.Baum