Illustrator: Cindy Roché and Annaliese Miller
Elymus macrourus grows on river banks and bars, lake shores, and hillsides in northwestern North America. Outside of North America, it grows across the Russian arctic, and extends south into the boreal forest. Plants growing on shifting river banks and bars often appear rhizomatous, as the lower internodes elongate in response to the disturbed substrate. Plants of E. macrourus differ from E. alaskanus (see next) in the shape of their glumes and their narrower glume margins, and from E. trachycaulus (p. 321) in their relatively short glumes and evidently hairy rachilla segments.
Three varieties of Elymus macrourus are recognized in Russian treatments. It is not clear to which, if any, of the Russian varieties North American plants belong. A circumboreal study is needed, using plants grown from seeds collected in the wild. Seeds available as E. macrourus through germplasm resources appear to be misidentified.
Elymus macrourus is one of the parents in both E. ×palmerensis (p. 340) and ×Elyhordeum pilosilemma (p. 284).
|Author||Mary E. Barkworth +, Julian J.N. Campbell + and Bjorn Salomon +|
|Authority||(Turcz. ex Steud.) +|
|Common name||Northern wheatgrass +|
|Distribution||Alaska +, N.W.T. + and Yukon +|
|Illustrator||Cindy Roché and Annaliese Miller +|
|Source xml||https://email@example.com/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse grained fna xml/V24/V24 457.xml +|
|Synonyms||Agropyron macrourum +, Roegneria turuchanensis +, Roegneria macroura + and Agropyron sericeum +|
|Taxon family||Poaceae +|
|Taxon name||Elymus macrourus +|
|Taxon parent||Elymus +|
|Taxon rank||species +|
|Volume||Volume 24 +|