State Rank Reason (see State Rank above)
Known in Montana from 1 collection from the Bighorn Mtns. Though its exact status is uncertain, its rarity warrants its inclusion as a Species of Concern.
Rhizomatous perennial. Stems ascending to erect, 30–60 cm. Herbage pubescent to sericeous. Leaves basal and cauline; blades oblanceolate, 1–5 cm long, entire; the lower petiolate. Inflorescence leafy-paniculate with several heads; peduncles pubescent. Involucre campanulate, 7–9 mm high; phyllaries spreading, oblanceolate, pubescent, green above, white below; inner narrower. Rays 20 to 35, violet; ligules 12–20 mm long. Disk flowers 35 to 70, yellow; corollas 5–7 mm long. Achenes cylindric, 2–4 mm long, hairy (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)