Elymus canadensis var. brachystachys
Treatment appears in FNA Volume 24. Treatment on page 305.
Revision as of 16:23, 11 May 2021 by imported>Volume Importer
Spikes 6-20 cm, nodding, not strongly glaucous, often becoming yellowish or pale reddish brown, rarely with 3 spikelets per node; internodes mostly 3-4 mm. Glumes not clearly indurate or bowed out at the base, awns 10-20 mm; lemmas smooth or scabridulous, awns usually 20-30 mm, moderately outcurving.
Discussion
Elymus canadensis var. brachystachys is widespread in the southern Great Plains from Nebraska to Mexico, where anthesis is from March to early June. It also occurs sporadically as far north as southern Canada, from British Columbia to Quebec. Plants of this variety occasionally appear introgressed from E. virginicus (p. 298), particularly E. virginicus var. jejunus, but not to the same extent as E. canadensis var. robustus.
Selected References
None.
Lower Taxa
None.
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Conn. +, N.J. +, N.Y. +, Wash. +, Del. +, D.C. +, Wis. +, W.Va. +, Wyo. +, N.H. +, N.Mex. +, Tex. +, N.C. +, Tenn. +, Pa. +, Alta. +, B.C. +, Man. +, N.B. +, N.W.T. +, Ont. +, Que. +, Sask. +, R.I. +, Nev. +, Va. +, Colo. +, Calif. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Vt. +, Ill. +, Ind. +, Iowa +, Ariz. +, Idaho +, Maine +, Md. +, Mass. +, Ohio +, Utah +, Mo. +, Minn. +, Mich. +, Mont. +, S.C. +, Ky. + and Oreg. +
Present +
Elymus canadensis var. brachystachys +
Elymus canadensis +
variety +