UW Burke Herbarium species comparison

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Elymus multisetus

Elymus glaucus

big squirreltail

blue wild-rye
Habit Tufted perennials, forming clumps up to 10 cm. wide, the hollow culms 5-10 dm. tall.
Leaves

Sheaths open, glabrous to pubescent, the collar often purplish;

auricles usually present and well-developed;

ligules about 1 mm. long, with marginal hairs;

blades flat, 5-10 mm. broad, glabrous or scabrous to hairy.
Flowers

Inflorescence as single, terminal, stiff spike 5-15 cm. long;

spikelets overlapping, usually 2 per node, borne flatwise on the rachis, 3- to 5-flowered, disarticulating above the glume;

glumes narrowly lanceolate, mostly membranous, strongly 3- to 5-nerved, acuminate to short-awned;

lemmas mostly glabrous, 10-12 mm. long, usually with a straight awn 1-2 cm. long;

paleas nearly as long as the body of the lemmas.

Elymus multisetus

Elymus glaucus
Flowering time May-August June-August
Habitat Dry, often rocky, open woodland and thickets on slopes and plains. Prairies, open woods, and dry to moist hillsides, from the lowlands to middle elevations in the mountains.
Distribution
Occurring east of the Cascades crest in Washington; central Washington to California, east to Idaho, Colorado, and Arizona.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Great Plains and Great Lakes region.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Not of concern
Sibling taxa
E. albicans, E. canadensis, E. curvatus, E. elymoides, E. glaucus, E. ×hansenii, E. hirsutus, E. lanceolatus, E. ×pseudorepens, E. repens, E. scribneri, E. sierrae, E. trachycaulus, E. violaceus, E. wawawaiensis
E. albicans, E. canadensis, E. curvatus, E. elymoides, E. ×hansenii, E. hirsutus, E. lanceolatus, E. multisetus, E. ×pseudorepens, E. repens, E. scribneri, E. sierrae, E. trachycaulus, E. violaceus, E. wawawaiensis
Subordinate taxa
E. glaucus ssp. glaucus, E. glaucus ssp. virescens
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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