Draba incrassata (Rollins) Rollins & R. A. Price, Harvard Pap. Bot. 1(3): 73. 1991. Draba lemmonii S. Watson var. incrassata Rollins, Rhodora 55: 323. 1953. TYPE: U.S.A. California. Mono Co.: SE side of Sweetwater Canyon, 9200 ft, 17 Jul 1944, Annie M. Alexander & Louise Kellogg 3905 (holotype, UC!; isotypes, DS, GH!, NY!).

     Herbs perennial, cespitose, scapose, loosely matted; caudex many branched, often creeping, with persistent leaf bases of previous seasons, some branches terminated in sterile rosettes. Stems 2–8 cm, few to many from caudex, unbranched, glabrous throughout. Basal leaves rosulate, subsessile, obovate to spatulate or oblanceolate, 3–10 × 1.5–4.5 mm, thick and somewhat fleshy, entire; both surfaces glabrous or sparsely ciliate along margin and pubescent below apex with simple and fewer, short-stalked, 2-rayed trichomes 0.2–0.7 mm; cauline leaves absent. Racemes ebracteate, 8–22-flowered, elongated in fruit; rachis glabrous, not flexuous; lowermost fruiting pedicels 3–7(–10) mm, horizontal to divaricate-ascending, curved upward, glabrous, distinctly decurrent at base. Flowers: sepals oblong, 1.7–3 mm, glabrous or with few, subapical, simple or 2-rayed trichomes; petals bright yellow, oblanceolate to spatulate, 3–5 × 1.7–2.5 mm; anthers oblong, 0.4–0.6 mm. Fruits ovate to ovate-lanceolate or narrowly elliptic-lanceolate, 3–7(–10) × 2.2–4.5 mm, flattened, not twisted, glabrous or rarely sparsely puberulent with simple trichomes 0.03–0.1 mm; style 0.2–0.8 mm; ovules and seeds 8–12 per fruit. Seeds oblong, flattened, 1.5–1.8 × 0.8–1.1 mm, wingless. 2n = 24.

Flowering: Jun–Aug.

Habitat: rocky and gravelly slopes, alpine fell-fields.

Elevation: 2500–3500 m.

Distribution: United States (California).