Mat-forming with a branched caudex clothed in old leaves. Stems prostrate to ascending, densely leafy; fertile stems 4–15 cm, sparsely glandular-hairy. Leaves basal and cauline, needle-like, ciliate, 5–10 mm long, spine-tipped. Inflorescence an open, glandular-hairy panicle. Flowers: calyx saucer-shaped with lobes 1–2 mm long; hypanthium 1 mm or less long; petals oblong, 4–8 mm long, white, purple-spotted; ovary mostly superior. Capsule 3–8 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Our plants are susbspecies
austromontana (Wiegand) Piper.
Talus slopes, rock crevices and in gravelly soil of dry meadows, turf, often along streams; valleys to alpine (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).