Astragalus lentiginosus var. platyphyllidius |
Astragalus lentiginosus var. piscinensis |
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broad-leaf freckled milkvetch, broad-leaf milkvetch |
Fish Slough milk vetch |
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Habit | Plants perennial, (7–)10–30(–35) cm. | Plants perennial, to 100 cm. |
Stems | prostrate. |
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Leaves | (4–)5–11 cm; leaflets (7–)11–17(or 19), blades usually broadly obovate-cuneate, elliptic, or suborbiculate, rarely rhombic-elliptic, (4–)7–20 mm, apex usually obtuse, retuse, truncate, or apiculate, rarely acute. |
2–5 cm; leaflets 3 or 5, blades linear-oblanceolate, 7–15 mm, terminal leaflet 14–30 mm, apex obtuse or subacute. |
Racemes | shortly and loosely (5–)7–15-flowered, flowering from near or proximal to middle nodes, short and compact in fruit; axis little elongating, 1–3.5 cm in fruit. |
shortly 5–12-flowered, short and compact in fruit; axis 1.5–4 cm in fruit. |
Peduncles | 1–5 cm. |
2–5.5 cm. |
Flowers | (12.6–)14–21.4 mm; calyx (8–)8.5–12.5 mm, tube (5–)5.5–8(–9) mm, lobes 2.4–5 mm; corolla usually whitish, rarely purple. |
13 mm; calyx 7 mm, tube 4.5 mm, lobes 2.5 mm; corolla purple. |
Legumes | variable in length, outline, and curvature, pale green or purple-speckled becoming stramineous or brownish, plumply ovoid or narrowly lanceoloid-ellipsoid, (13–)15–40(–48) × 7–14 mm, ± bilocular, strongly or slightly inflated, ± fleshy becoming leathery or stiffly papery, usually glabrous, sometimes minutely strigulose; beak deltoid or lanceolate-acuminate, 5–15 mm, unilocular. |
mottled, ovoid-acuminate, moderately inflated, 20–24 × 8–12 mm, stiffly papery, strigulose; beak incurved, 4.5–7 mm, bilocular. |
Seeds | (21–)24–32(–38). |
18. |
Astragalus lentiginosus var. platyphyllidius |
Astragalus lentiginosus var. piscinensis |
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Phenology | Flowering May–Jul. | Flowering Jun–Jul. |
Habitat | Arid plains, hillsides, and valley floors, on basalt, with sagebrush. | Saline seep, moist at least in springtime, growing with Ivesia, Juncus, and other herbs. |
Elevation | 600–1900(–2100) m. (2000–6200(–6900) ft.) | 1200–1300 m. (3900–4300 ft.) |
Distribution |
CA; CO; ID; NV; OR; UT; WY |
CA |
Discussion | Variety platyphyllidius is dispersed widely from eastern Oregon and northeastern California, across southern Idaho into western Wyoming, northeastern Nevada, and barely into northern Utah and northwestern Colorado. It is apparently common only locally, distinguished by its typically pale flowers and thick-textured fruits (approximate length of two times width or less). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety piscinensis is known from Fish Slough northwest of Bishop in Mono County. It is similar in habit to vars. multiracemosus and sesquimetralis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Cystium platyphyllidium, A. lentiginosus var. cornutus, A. merrillii, C. cornutum, C. merrillii | |
Name authority | (Rydberg) M. Peck: Man. Pl. Oregon, 449. (1941) — (as platyphyllidium) | Barneby: Brittonia 29: 378, fig. 2. (1977) |
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