Perennial from a slenderly-branched caudex; foliage retrose-pubescent. Stems trailing but erect distally, 5–25 cm. Leaves: basal numerous on short sterile stems, oblanceolate, 2–4 cm long; cauline linear, reduced. Inflorescence a compact, densely pubescent cyme. Flowers erect; calyx tubular, purplish, 10-veined, 10–15 mm long; petals white, the blade 2-lobed, 3–7 mm long; styles 3, exserted. Capsules ovoid, equaling the calyx, opening by 6 slits. Non-calcareous talus, turf; near or above treeline (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Our plants are subspecies australe
C.L. Hitchc. & Maguire.
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans
, Bombus pensylvanicus
, and Bombus impatiens
(Colla and Dumesh 2010).