Astragalus toquimanus
Leafl. W. Bot. 3: 111, plate 1, fig. D. 1942.
Plants slender, 7–30 cm, strigulose; from superficial caudex. Stems ascending, strigulose. Leaves 2.5–11 cm; stipules 1.5–3 mm, papery at proximal nodes, firm at distal nodes; leaflets 9–17, blades oblong-oblanceolate, linear-oblong, or obovate, 3–15 mm, apex obtuse or retuse, surfaces strigulose, sometimes glabrescent adaxially. Peduncles incurved-ascending or divaricate, 2.5–6(–10) cm. Racemes loosely 9–20-flowered; axis 4.5–13 cm in fruit; bracts 1–1.5 mm; bracteoles 2. Pedicels 0.8–2 mm. Flowers 6.9–7.6 mm; calyx 3.5–4 mm, strigose, tube 2.5–2.8 mm, lobes subulate, 1–1.5 mm; corolla ochroleucous, banner veined or suffused with purple; banner recurved through 90°; keel 6.8–7.7 mm. Legumes pendulous, mottled (and glaucescent) becoming stramineous and faintly purple-tinged, slightly incurved, oblong-lanceoloid, distinctly 3-sided compressed, 18–25 × 3–4.5 mm, papery, glabrous; septum 2.4–2.7 mm wide; stipe 3–4 mm. Seeds 11–16.
Phenology: Flowering late Apr–early Jul.
Habitat: Gravelly, calcareous substrates in pinyon-juniper and sagebrush communities, under low sagebrush.
Elevation: 2000–2300 m.
Distribution
Nev.
Discussion
Astragalus toquimanus is restricted to the eastern slope of the Toquima Range, Nye County.
Selected References
None.