UW Burke Herbarium species comparison

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Ionactis stenomeres

Rocky Mountain ankle-aster, Rocky Mountain aster
Habit Perennial from a branching crown, fibrous-rooted, the several stems erect or ascending, 1.5-3 dm. tall.
Leaves

Leaves crowded, scabrous, sessile, 1-nerved, 15-40 mm. long and 1-4 mm. wide, tipped with a short spine.
Flowers

Heads solitary, top-shaped, the disk 12-25 mm. wide;

rays about 13, 12-20 mm. long, blue to violet;

involucre 9-14 mm. high, its bracts imbricate, glandular-hairy;

pappus of capillary bristles, double, the outer 1 mm. long.
Fruits

Achenes silky.

Ionactis stenomeres
Flowering time June-September
Habitat Open hillsides and forest openings, from to fairly high elevations in the mountains.
Distribution
Occurring east of the Cascades crest in northeastern Washington; southeastern British Columbia to northeastern Washington, east to Idaho and Montana.
[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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