Astragalus tephrodes var. chloridae |
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ashen milkvetch, chloride milkvetch |
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Stems | 2–15 cm. |
Leaves | 10–24 cm; leaflets 19–25, blades flat, rhombic, rhombic-ovate, obovate, or oblanceolate, 6–26 mm, apex usually acute, sometimes obtuse. |
Racemes | 13–24-flowered; axis (4–)7–20 cm in fruit. |
Peduncles | 13–40 cm. |
Flowers | 16.8–20.4 mm; calyx 11.5–14 mm, pilosulous or loosely strigulose, tube 8.3–10.2 mm, lobes 2.1–3.8 mm; corolla banner 16.8–20.4 mm; keel 15.2–18.2 mm. |
Legumes | lanceolate- or oblong-ellipsoid, 22–34 × 6–10(–12) mm, beak 3–6 mm, stiffly leathery or subligneous, angles ± rugulose, strigulose-pilosulous. |
Seeds | 28–36. |
Stipules | 2–15 mm, surfaces sparsely strigulose or glabrate abaxially. |
2n | = 22. |
Astragalus tephrodes var. chloridae |
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Phenology | Flowering Mar–May. |
Habitat | Larrea and juniper communities. |
Elevation | 900–1400 m. (3000–4600 ft.) |
Distribution |
AZ; NV |
Discussion | As strictly perceived, var. chloridae is restricted to the Cerbat Mountains, Mohave County, Arizona, and the Newberry Mountains, Clark County, Nevada. D. Isely (1998) allowed a somewhat broader range in Mohave County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Synonyms | A. remulcus var. chloridae |
Name authority | (M. E. Jones) Barneby: Mem. New York Bot. Gard. 13: 642. (1964) |
Web links |