61. Boechera nevadensis (Tidestrom) Windham & Al-Shehbaz, Harvard Pap. Bot. 11: 73. 2006; Arabis nevadensis Tidestrom, Proc. Biol. Soc. Wash. 36: 182. 1923. TYPE: United States, Nevada: Clark County, head of Lee Canyon, Charleston Mts., 10,000 ft, 5 Aug 1913, A. A. Heller 11077 (holotype, US!; isotypes, DS!, E!, GH!, MO!, NY!).
Plants short- to long-lived perennials, with mostly non-woody caudices, lacking crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 2–4 per caudex branch, arising near ground surface from margin of basal rosettes or laterally below sterile shoots, 0.6–2.0 dm, glabrous throughout. Leaves at stem bases oblanceolate, 2–6 mm wide, entire, rarely ciliate on petioles with simple trichomes 0.5–0.7 mm, blade surfaces glabrous; cauline leaves 5–9, rarely concealing stem proximally, the uppermost glabrous, with auricles 0.7–2.5 mm. Inflorescences mostly unbranched, 4–12-flowered; fruiting pedicels 2.5–8.0 mm, divaricate-ascending to horizontal, straight, glabrous. Flowers ascending at anthesis; sepals glabrous; petals lavender, 4.0–5.5 ´ 1.5–2.0 mm, glabrous; ovules 52–72 per fruit. Fruits 1.9–4.0 cm ´ 2–3 mm, divaricate-ascending or rarely slightly descending, usually secund, straight to slightly curved, glabrous; style 0.05–0.20 mm. Seeds biseriate, 1.1–1.4 ´ 0.8–1.0 mm; wing continuous, 0.07–0.15 mm wide.
Habitat: ledges and talus of limestone cliffs.
Elevation: 3050–3350 m.
Distribution: United States (Nevada/Clark and Nye counties)
Reproductive mode: sexual diploid.