Perennials; (short-lived, dwarf) ; eglandular; sparsely pubescent throughout, trichomes dendritic. Stems (simple from base), erect, usually unbranched, rarely branched distally, 0.1-0.15 dm. Basal leaves: petiole 0.3-0.6 cm; blade pinnate, oblanceolate in outline, lateral lobes (2-4 pairs), oblanceolate to obovate, (1-2.5 × 0.5-1 mm), margins entire. Cauline leaves subsessile; blade smaller distally, distal lobes narrower, surfaces sparsely pubescent. Racemes not elongated in fruit. Fruiting pedicels erect to ascending, straight, 1-1.5 mm. Flowers: sepals ascending, yellowish, ovate, 1-1.4 mm, pubescent; petals narrowly oblanceolate, 1-1.5 × 0.3-0.4 mm; median filaments 0.6-1 mm; anthers (broadly ovate), ca. 0.1 mm. Fruits erect, linear, torulose, 6-10 × 1-1.3 mm, (straight); valves each with distinct midvein; septum with distinct midvein; ovules 4-8 per ovary; style obsolete, 0.1-0.2 mm, glabrous. Seeds uniseriate, reddish brown, oblong, 1-1.2 × 0.5-0.6 mm. Flowering Aug-Sep. Alpine tundra, talus slopes; 3600-3800 m; Colo. Descurainia kenheilii is known from the high alpine areas in Archuleta and San Juan counties.