Elymus lanceolatus subsp. riparius

(Scribn. & J.G. Sm.) Barkworth
Common names: Streambank wheatgrass
Synonyms: Elymus lanceolatus var. riparius
Treatment appears in FNA Volume 24. Treatment on page 329.

Culms usually 22-60 cm. Spikes 6-10 cm; internodes 3.5-10 mm, glabrous, sometimes scabrous. Spikelets 10-17 mm. Lemmas smooth, sometimes scabrous distally, mostly glabrous, margins sometimes hairy proximally.

Discussion

Elymus lanceolatus subsp. riparius grows throughout most of the western part of the range of E. lanceolatus, being more common in mesic habitats and clay soils than the other two subspecies.

Selected References

None.

Lower Taxa

None.
Mary E. Barkworth +, Julian J.N. Campbell +  and Bjorn Salomon +
(Scribn. & J.G. Sm.) Barkworth +
Streambank wheatgrass +
Oreg. +, Nev. +, Colo. +, N.Mex. +, Alaska +, Ill. +, Mont. +, Wyo. +, Mich. +, Wis. +, Idaho +, Alta. +, B.C. +, Man. +, Ont. +, Sask. +, Yukon +, Wash. +, Ariz. +, Calif. +, N.Dak. +, Nebr. +  and S.Dak. +
Elymus lanceolatus var. riparius +
Elymus lanceolatus subsp. riparius +
Elymus lanceolatus +
subspecies +