(Rollins) O'Kane & Al-Shehbaz
Steve L. O´Kane Jr. in Flora of North America (vol. 7)
caudex simple or branched, (usually covered with persistent leaf bases, cespitose); densely pubescent, trichomes (closely appressed), rays distinct, usually bifurcate.
several from base, erect, (unbranched, slender), 0.1-0.6 dm.
blade rhombic to obovate, 2-4 cm, margins entire.
blade linear-oblanceolate, similar to basal.
dense (distally, subumbellate).
(divaricate-ascending), 3-5 mm, (densely pubescent).
sepals (yellowish), oblong to elliptic, 3.5-7 mm, (median pair usually thickened apically, cucullate); petals lingulate to spatulate, 4-7 mm.
(erect), ovate to suborbicular, compressed apically (latiseptate), 3-4 mm; valves pubescent; replum ovate to obovate; ovules 4-6 per ovary; style 2-3 mm.
= 10. Flowering Apr-Jun. Rocky high ridges, gravel and stony areas, juniper covered knolls, rock crevices, clay hillsides, pinyon-juniper areas, calcareous substrates; 1600-2700 m; Colo., Utah, Wyo.
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