Sometimes dioecious, glabrous perennial from a branched caudex, forming mats to 30 cm across. Stems erect or ascending, 1–3 cm. Leaves crowded below, needle-like, 2–8 mm long. Flowers perfect or unisexual, solitary, nearly sessile or on pedicels to 2 cm long; calyx tubular, 4–8 mm long, pinkish, 10-veined; petals rose; the blade 1–6 mm long, 2-lobed; styles 3. Capsule smaller than the calyx, opening by 6 slits. Stony soil of tundra and exposed ridges, slopes; alpine, rarely lower (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
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).