Elytrigia dasystachya (Hook.) Á.Löve & D.Löve
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Poaceae
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Scientific Name
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Description
Species Description - Strongly rhizomatous, usually glaucous, 3–9 dm; lvs involute or sometimes flat, 1–3.5(–5) mm wide, firm, glabrous to scaberulous or sometimes pilose; spikes stiff, erect, 6–25 cm, the middle internodes 7–12+ mm; spikelets 11–20+ mm, mostly 3–7-fld, sometimes some of them in pairs; glumes in var. dasystachya lance-oblong, acute to acuminate, broadest at or above midlength, usually more than half as long as the lemmas; in var. psammophila more slender and attenuate, approaching the form of E. smithii, to half as long as the lemmas; lemmas 7–10 mm, acute, sometimes shortly awn-tipped, densely villous, or in var. dasystachya sometimes merely scabrous; anthers (3.5–)4–5 mm; 2n=28. (Agropyron d.; Elymus lanceolatus) Var. dasystachya is widespread in the w. cordilleran region and on the n. Great Plains, and casually intr. eastward; var. psammophila (J. M. Gillett & H. Senn) Cronquist occurs on sand dunes along lakes Michigan and Huron in Ont., Mich., Ill., and Wis., disjunct from the natural range of var. dasystachya.
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Common Names
thickspike wheatgrass