UW Burke Herbarium species comparison

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Vahlodea atropurpurea

Poaceae subfam. pooideae

arctic-hair grass
Habit Strongly tufted perennial 1.5-6 dm. tall, the culms hollow.
Leaves

Sheaths open;

ligules obtuse to truncate, pubescent, 1.5-3.5 mm. long;

leaves flat, deep green, 4-6 mm. wide, the tips prow-like.

Flowers

Inflorescence an open panicle 5-10 cm. long;

spikelets usually 2-flowered, purplish-tinged; articulation above the glumes;

glumes subequal, elliptic in outline, about 5 mm. long, acute, the first 1-nerved, the second 3-nerved, exceeding the upper floret;

lemmas obscurely 3-nerved, erose, about 2.5 mm. long, the hairs on the callus about half as long;

lemma awned from just above mid-length, the awn stout and twisted, about 2.5 mm. long.

Fruits

Utricle

Vahlodea atropurpurea

Poaceae subfam. pooideae
Flowering time June-August
Habitat Mountain meadows, streambanks, and lake margins to alpine ridges.
Distribution
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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