Anelsonia eurycarpa (A. Gray) J. F. Macbride & Payson, Bot. Gaz. 64: 81. 1917; Draba eurycarpa A. Gray, Proc. Amer. Acad. Arts 6: 520. 1865; Parrya eurycarpa (A. Gray) Jepson, Man. Fl. Pl. Calif. 434. 1925; Phoenicaulis eurycarpa (A. Gray) Abrams, Ill. Fl. Pacific States 2: 290. 1944. TYPE: United States, California, peak on Sierra Nevada S of near Sonora Pass 11,500 ft, 19 Jul 1863, W. H. Brewer 1909 (holotype, GH!; isotype, US!).
Parrya huddelliana A. Nelson, Bot. Gaz. 54: 139. 1912. TYPE: United States, Idaho, Custer Co., Bear Canyon, Mackay, black limestone slide rock, 10,000, 31 Jul 1911, A. Nelson & J. F. Macbride 1466 (holotype, RM!; isotypes, DS!, GH!, MO!, NY!, POM!, UC!, US!).
Herbs, scapose, sparsely to densely pubescent; caudex many branched, the ultimate slender branches covered by petiolar remains of previous years and ending in rosettes. Stems 1–4 cm, leafless. Basal leaves rosulate, tufted; petiole 5–10 mm, persistent and becoming stramineous; leaf blade narrowly oblanceolate to broadly linear 5–18 x 1–2 mm, base attenuate, margin entire, apex obtuse. Racemes 1–10-flowered; fruiting pedicels ascending to suberect, 4–15 mm, slender, pilose. Sepals purple, 4–5 x 1.5–2 mm; petals white to purplish, oblanceolate, 4.5–6 x 1.7–2.3 mm; filaments 3.5–4.5 mm; anthers 0.5–0.7 mm. Fruit lanceolate, broadly oblong, to narrowly ovate, 1.5–3 cm x 5–9 mm, latiseptate, erect; valves purplish, glabrous, often glaucous, base obtuse, apex acute to acuminate; gynophore obsolete or to 1 mm; style 1–2 mm. Seeds brown, oblong to ovate, 2–3 x 1.2–1.5 mm. 2n = 14.
Habitat: rock slides of metamorphics, whitish ash, subalpine and alpine ridges, rock and talus slides, disintegrated volcanic rock.
Elevation: 1600–4200 m.
Distribution: United States (California, Idaho, Nevada).