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Photo is of parent taxon

harney milkvetch, sagebrush milk vetch, salty freckled milkvetch, salty loco milkvetch

Photo is of parent taxon
Habit Plants perennial, 6–30(–45) cm. Plants perennial, 19–32 cm.
Stems

ascending to erect, mostly unbranched.

diffuse and incurved-ascending, often red- or purple-tinged.

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.

(2.5–)4–11 cm;

leaflets (7–)13–19, blades elliptic-oblanceolate, broadly oblong-oblanceolate, or obovate, (2–)5–17 mm, apex obtuse or emarginate.

Racemes

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

axis 1.5–4(–9) cm in fruit.

5–11-flowered, flowering from middle and distally, short and compact in fruit;

axis 0.5–5 cm in fruit.

Peduncles

2–4.5(–5) cm.

2.2–5 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.

12.5–14.5 mm;

calyx 7.5–10.2 mm, tube 5.2–5.8 mm, lobes 1.8–4.4 mm;

corolla bright pink-purple with pale, striate eye.

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.

purplish, often red-mottled, becoming stramineous, ellipsoid to lanceoloid-ovoid or ellipsoid-acuminate, moderately inflated, 23–34 × 6–15 mm, bilocular, stiffly papery or almost leathery, usually glabrous, rarely puberulent;

beak well-defined, triangular or deltoid, 7–12 mm, unilocular.

Seeds

(7–)16–25.

40.

2n

= 22.

Astragalus lentiginosus var. salinus

Astragalus lentiginosus var. negundo

Phenology Flowering Apr–Jun. Flowering late Apr–Jun.
Habitat Saline flats and playas upward to mountain slopes in sagebrush, oak, and other montane communities. Salt and sand desert shrub communities with shadscale, greasewood, sagebrush, and horsebrush, in pinyon-juniper communities.
Elevation 700–2600 m. (2300–8500 ft.) 1400–1700(–2300) m. (4600–5600(–7500) ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; UT; WY; BC
[BONAP county map]
from FNA
UT
[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 negundo, which is known from Box Elder, Millard, and Tooele counties, fills a portion of the gap in distribution between var. platyphyllidius, with which it shares relatively thick-textured fruits, and var. chartaceus, with which it is transitional to the south. From either taxon, the elongated fruit is evidently diagnostic, apparent only as fruits approach maturity. The lower flower number is characteristic of var. negundo and is more or less diagnostic.

(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. micans, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, 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) S. L. Welsh & N. D. Atwood in S. L. Welsh: N. Amer. Sp. Astragalus, 302, fig. 285u. (2007)
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