Flora of North America species comparison

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Astragalus lentiginosus var. salinus
Photo is of parent taxon

harney milkvetch, sagebrush milk vetch, salty freckled milkvetch, salty loco milkvetch
Habit Plants perennial, 6–30(–45) cm.
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.
Racemes

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

axis 1.5–4(–9) cm in fruit.
Peduncles

2–4.5(–5) 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.
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.
Seeds

(7–)16–25.
2n

= 22.

Astragalus lentiginosus var. salinus
Phenology Flowering Apr–Jun.
Habitat Saline flats and playas upward to mountain slopes in sagebrush, oak, and other montane communities.
Elevation 700–2600 m. (2300–8500 ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; UT; WY; BC
[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.)
Source FNA vol. 11.
Parent taxa 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
Synonyms A. salinus
Name authority (Howell) Barneby: Leafl. W. Bot. 4: 86. (1945)
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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