*Elymus repens (Linnaeus) Gould. Quackgrass, Dog-grass, Witchgrass, Couchgrass, Quitchgrass. Phen: Jun-Aug. Hab: Roadsides, disturbed areas, pastures; probably introduced from Europe (sometimes considered to be partially native along the coast).

Origin/Endemic status: Europe

Synonymy: = Ar, ETx1, FNA24, K1, K3, K4, Mi, Mo1, NE, NY, Pa, Tn, Va, X; = Agropyron repens (L.) P.Beauv. – G, HC, RAB, S, W, WV; = Elytrigia repens (L.) Nevski – C, Il; > Agropyron repens (L.) P.Beauv. var. repens – F; > Agropyron repens (L.) P.Beauv. var. subulatum (Schreb.) Roem. & Schult. – F

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