Flora of North America species comparison

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Astragalus lentiginosus var. salinus

Astragalus lentiginosus var. micans
Photo is of parent taxon

harney milkvetch, sagebrush milk vetch, salty freckled milkvetch, salty loco milkvetch
Photo is of parent taxon

freckled milkvetch, shining freckled milkvetch, shining milk vetch
Habit Plants perennial, 6–30(–45) cm. Plants perennial, clump-forming, 20–40 cm, herbage silvery- or white-silky, hairs 1.1–2 mm.
Stems

ascending to erect, mostly unbranched.

Leaves

4–10 cm;

leaflets (9 or)11–19, blades broadly obovate, obovate-cuneate, obcordate, or oblong to oblanceolate, 5–20 mm, apex usually retuse or emarginate, surfaces glabrate to densely strigulose, hairs appressed or subappressed.

4.5–9.5 cm;

leaflets 11–17, blades usually narrowly to broadly obovate or ovate, rarely rhombic-suborbiculate, 5–14 mm, apex truncate-emarginate to subacute.
Racemes

10–25-flowered, floriferous from middle to distalmost nodes, short and compact in fruit;

axis 1.5–4(–9) cm in fruit.

loosely (12–)20–35-flowered, lax and open in fruit;

axis (3.5–)4.5–10(–15) cm in fruit.
Peduncles

2–4.5(–5) cm.

4.5–9 cm.
Flowers

9.5–11.5 mm;

calyx 5–6.4 mm, tube 3.6–4.2(–4.6) mm, lobes 1.2–2.2 mm;

corolla whitish, sometimes wings and keel with lavender tips.

12.2–14.3 mm;

calyx 6–7.6 mm, tube 4.5–4.9 mm, lobes 1.4–2.6 mm;

corolla pink-lavender.
Legumes

green or mottled becoming stramineous, obliquely ovoid or subglobose, strongly inflated, 14–26(–30) × (6–)7.5–14 mm, papery-membranous, translucent, glabrous or puberulent;

beak 3–9 mm, unilocular.

green, unmottled, obliquely ovoid, inflated, 15–20 × 8–10 mm, bilocular, stiffly papery, densely silky-villous-tomentulose;

beak 2.5–4 mm, unilocular.
Seeds

(7–)16–25.

23–28.
2n

= 22.

Astragalus lentiginosus var. salinus

Astragalus lentiginosus var. micans
Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat Saline flats and playas upward to mountain slopes in sagebrush, oak, and other montane communities. Forming large clumps over low slopes of mobile dunes.
Elevation 700–2600 m. (2300–8500 ft.) 900–1000 m. (3000–3300 ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; UT; WY; BC
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Variety salinus, widespread in the northern and eastern portions of the Great Basin, occupies a crucial position in the Astragalus lentiginosus complex, serving to link many superficially disparate lines of differentiation (R. C. Barneby 1964). On the one hand, one can trace a sequence passing through var. floribundus to var. ineptus, and then to vars. antonius, idriensis, and sierrae. On the other hand, another strand leads through vars. lentiginosus and platyphyllidius to vars. chartaceus, diphysus, and finally australis.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety micans is a local adjunct of the variable var. variabilis (D. Isely 1998), restricted to the southern end of Eureka Valley in Inyo County, California, and adjacent to Big Dune and in the Amargosa Desert, near Lathrop Wells in Nye County, Nevada. Isely questioned its recognition at varietal rank, initially considering it a local dune-specialized ecotype. Although it is ordinarily a strong perennial, some plants are evidently short-lived, a feature shared with var. coulteri.

Variety micans is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus
Sibling taxa
A. lentiginosus var. albifolius, A. lentiginosus var. ambiguus, A. lentiginosus var. antonius, A. lentiginosus var. australis, A. lentiginosus var. chartaceus, A. lentiginosus var. coachellae, A. lentiginosus var. coulteri, A. lentiginosus var. diphysus, A. lentiginosus var. floribundus, A. lentiginosus var. fremontii, A. lentiginosus var. higginsii, A. lentiginosus var. idriensis, A. lentiginosus var. ineptus, A. lentiginosus var. kennedyi, A. lentiginosus var. kernensis, A. lentiginosus var. latus, A. lentiginosus var. lentiginosus, A. lentiginosus var. macrolobus, A. lentiginosus var. maricopae, A. lentiginosus var. micans, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, A. lentiginosus var. negundo, A. lentiginosus var. nigricalycis, A. lentiginosus var. oropedii, A. lentiginosus var. palans, A. lentiginosus var. piscinensis, A. lentiginosus var. platyphyllidius, A. lentiginosus var. pohlii, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, A. lentiginosus var. sesquimetralis, A. lentiginosus var. sierrae, A. lentiginosus var. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. trumbullensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus
A. lentiginosus var. albifolius, A. lentiginosus var. ambiguus, A. lentiginosus var. antonius, A. lentiginosus var. australis, A. lentiginosus var. chartaceus, A. lentiginosus var. coachellae, A. lentiginosus var. coulteri, A. lentiginosus var. diphysus, A. lentiginosus var. floribundus, A. lentiginosus var. fremontii, A. lentiginosus var. higginsii, A. lentiginosus var. idriensis, A. lentiginosus var. ineptus, A. lentiginosus var. kennedyi, A. lentiginosus var. kernensis, A. lentiginosus var. latus, A. lentiginosus var. lentiginosus, A. lentiginosus var. macrolobus, A. lentiginosus var. maricopae, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, A. lentiginosus var. negundo, A. lentiginosus var. nigricalycis, A. lentiginosus var. oropedii, A. lentiginosus var. palans, A. lentiginosus var. piscinensis, A. lentiginosus var. platyphyllidius, A. lentiginosus var. pohlii, A. lentiginosus var. salinus, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, A. lentiginosus var. sesquimetralis, A. lentiginosus var. sierrae, A. lentiginosus var. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. trumbullensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus
Synonyms A. salinus
Name authority (Howell) Barneby: Leafl. W. Bot. 4: 86. (1945) Barneby: Leafl. W. Bot. 8: 22. (1956)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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