Astragalus lentiginosus var. latus |
Astragalus lentiginosus var. palans |
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freckled milkvetch, schell creek milkvetch |
freckled milkvetch, straggling milkvetch |
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Habit | Plants perennial, 5–17 cm. | Plants perennial (sometimes short-lived), (10–)15–35(–40) cm, herbage green or subglabrescent. |
Stems | usually ascending, rarely prostrate. |
|
Leaves | (4–)6–13 cm; leaflets 11–17(–23), blades broadly obovate, ovate, or broadly oblanceolate, (4–)6–15 mm, apex shallowly notched or obtuse. |
(3.5–)5–11cm; leaflets 13–21(or 23), blades broadly obovate-cuneate, oblong-elliptic, oblong-oblanceolate, or suborbiculate-obcordate, (3–)5–17(–23) mm, apex obtuse, emarginate, or subacute, adaxial surface glabrous. |
Racemes | shortly and loosely 5–12(–18)-flowered, short and compact in fruit; axis 0.7–2(–4) cm in fruit. |
loosely (6–)10–28-flowered; axis elongating or not, (1–)2–12(–14.5) cm in fruit. |
Peduncles | 1.5–6 cm. |
(3.5–)5–11 cm. |
Flowers | (11.3–)15–19 mm; calyx (6.5–)7–12.5 mm, tube (4.5–)5.6–8.2 mm, lobes (1.4–)2–4 mm; corolla pink-purple. |
13.5–17.5(–18.3) mm; calyx 6.3–9.4 mm, tube 4.7–6.8 mm, lobes (0.9–)1.1–3(–4) mm; corolla pink-purple. |
Legumes | green, red-mottled, becoming stramineous, plumply ovoid or subglobose, strongly inflated, 1–2.5 × 0.7–1.6 cm, leathery, glabrous; beak 2.5–5 mm, bilocular. |
spreading, declined, or spreading-ascending, green becoming stramineous then blackish, ± straight to uniformly or hamately incurved, obliquely linear-lanceoloid to narrowly ovoid-acuminate, not or scarcely inflated, dehiscent on ground, (12–)15–27 × 4–8.5 mm, ± bilocular, somewhat fleshy becoming leathery or stiffly papery, glabrous or strigulose; beak 5–8 mm, unilocular. |
Seeds | (12–)22–28. |
20–42. |
2n | = 22. |
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Astragalus lentiginosus var. latus |
Astragalus lentiginosus var. palans |
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Phenology | Flowering May–Jul. | Flowering Apr–Jun. |
Habitat | Open, gravelly slopes in timber belt. | Salt-desert shrub, blackbrush, juniper, pinyon-juniper, and mixed desert shrub communities. |
Elevation | (1700–)2200–3000 m. ((5600–)7200–9800 ft.) | 1100–1900 m. (3600–6200 ft.) |
Distribution |
NV |
AZ; CO; UT |
Discussion | Variety latus is known from the Schell Creek and Egan ranges in White Pine County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety palans is known from northern Arizona, excluding the Coconino Plateau and upper Verde Valley, and from southwestern Colorado and southeastern Utah. There is no substantial difference between material included within the concept of var. palans and Astragalus bryantii, which R. C. Barneby (1964) included within sect. Leptocarpi. S. L. Welsh (2007) considered it significant that fallen fruits, characteristic of var. palans, are included with the type collection of A. bryantii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. diphysus var. latus | A. palans, A. bryantii |
Name authority | (M. E. Jones) M. E. Jones: Rev. N.-Amer. Astragalus, 125. (1923) | (M. E. Jones) M. E. Jones: Contr. W. Bot. 8: 4. (1898) |
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