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curvatus, Elymus dahuricus, Elymus diversiglumis, Elymus elymoides, Elymus glabriflorus, Elymus glaucus, Elymus hirsutus, Elymus hoffmannii, Elymus hystrix,

wildrye Synonyms: Elymus virginicus var. glabriflorus Elymus virginicus var. australis Australis Elymus glabriflorus var. australis Elymus australis Treatment

may have resulted from introgression with E. virginicus (p. 298) or E. glabriflorus (p. 296), with which they have often been confused (Davies 1980). Fj

in its less robust habit and narrower leaves. It can hybridize with E. glabriflorus (p. 296), E. virginicus (p. 298), E. hystrix (p. 316) and allies, E.

plants include most material from the Carolina piedmont region, where E. glabriflorus (p. 296) is the most likely source of introgression. The relatively frequent

Meridian in the contiguous United States. It used to be confused with E. glabriflorus (p. 296) or E. virginicus (p. 298), but it reaches anthesis about a month

with E. canadensis, E. hystrix, E. svensonii, E. virginicus (p. 298), E. glabriflorus (p. 296) and E. diversiglumis; only the hybrids with E. diversiglumis

length increases towards the south, suggesting introgression with E. glabriflorus (p. 296) (Davies 1980). Pubescent blades are generally absent, but appear

its glumes are more like those of var. virginicus. Transitions to E. glabriflorus (p. 296) may be found in southern regions. Rare northern plants with

to 22 cm long in intermediate plants) in the Great Plains, and with E. glabriflorus (p. 296) or E. macgregorii (p. 295) in some southern or eastern regions

sometimes been confused with hairy plants of E. canadensis (p. 303) and E. glabriflorus (p. 296). The hairs of E. villosus are fine, whitish, and consistently