State Rank Reason (see State Rank above)
Only a few collections from Carbon and Sweet Grass counties.
Fibrous-rooted perennial usually with a simple caudex. Stems ascending to erect, 3–10 cm. Herbage villous, often minutely glandular. Leaves basal and cauline; blades linear-oblanceolate to oblong, entire, 6–25 mm long, becoming linear above. Heads radiate, solitary. Involucres hemispheric, 8–10 mm high; phyllaries in 2 or 3 series, purplish, minutely glandular, tangled-villous with septate hairs. Rays 60 to 125, blue, 8–13 mm long. Disk corollas 4–5 mm long. Achenes 2–3 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)