Distribution: Occurring east of the Cascades crest in northeastern Washington; southeastern British Columbia to northeastern Washington, east to Idaho and Montana.
Habitat: Open hillsides and forest openings, from to fairly high elevations in the mountains.
Flowers: June-September
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, beetles, wasps
Perennial from a branching crown, fibrous-rooted, the several stems erect or ascending, 1.5-3 dm. tall.
Leaves crowded, scabrous, sessile, 1-nerved, 15-40 mm. long and 1-4 mm. wide, tipped with a short spine.
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.
Achenes silky.
Publication: Pittonia. 3: 246. 1897.
PNW Herbaria: Specimen records of Ionactis stenomeres in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Ionactis stenomeres checklist entry.
OregonFlora: Ionactis stenomeres information.
E-Flora BC: Ionactis stenomeres atlas page.
CalPhotos: Ionactis stenomeres photos.
USDA Plants: Ionactis stenomeres information.
