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Photo is of parent taxon

soda springs milkvetch, Sodaville milk vetch

Photo is of parent taxon

freckled milk-vetch, specklepod milk-vetch

Habit Plants perennial, to 70–80 cm. Plants perennial, 10–30(–50) cm, sparsely strigulose.
Stems

prostrate.

Leaves

2–5 cm;

leaflets 9–15(or 17), blades oblanceolate, 6–18 mm, terminal leaflet 7–15 mm, apex obtuse or subacute.

3–10 cm;

leaflets (5–)9–17(or 19), blades broadly obovate, obovate-cuneate, or oblong-elliptic to suborbiculate or oblanceolate, (3–)5–15 mm, apex retuse or obtuse.

Racemes

shortly and loosely 6–12-flowered, short and compact in fruit;

axis 1–2 cm in fruit.

8–18(–22)-flowered;

axis 0.5–3(–3.5) cm in fruit.

Peduncles

1.5–4 cm.

1–3.5 cm.

Flowers

14–14.5 mm;

calyx 7–8 mm, tube 4.8–5.5 mm, lobes 2.2–2.5 mm;

corolla purple.

7.4–11 mm;

calyx 4.1–6.4 mm, tube 2.8–4.2 mm, lobes 1–2.2 mm;

corolla whitish or yellowish, sometimes faintly lilac.

Legumes

mottled, ovoid or broadly lanceoloid, moderately inflated, 16–26 × 9–12 mm, semibilocular, stiffly papery, strigulose;

beak incurved, 4–8 mm, unilocular.

green, usually mottled, becoming stramineous or brownish, obliquely ovoid-acuminate to lanceoloid-acuminate, strongly to scarcely inflated, 10–23 × (3–)4.5–10 mm, semibilocular, stiffly papery, opaque or nearly so, usually thinly strigulose, rarely puberulent;

beak 4–9 mm, unilocular.

Seeds

12–20.

(15 or)16–21.

2n

= 22.

Astragalus lentiginosus var. sesquimetralis

Astragalus lentiginosus var. lentiginosus

Phenology Flowering May–Jun. Flowering May–early Jul.
Habitat Saline, seasonally moist clay flats, around seeps and springs. Often on volcanic soils, on basalt, with sagebrush and bunchgrass, in ponderosa pine and western juniper communities.
Elevation 900–1400 m. (3000–4600 ft.) 200–1500 m. (700–4900 ft.)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
CA; ID; NV; OR; WA; BC
[BONAP county map]
Discussion

The branches of var. sesquimetralis radiate, forming large, round plants that hug the ground. This habit, coupled with a long season of available water, is evidently conducive to long-continuing flowering and fruiting but is not necessarily an indication of a near relationship to other taxa that are similar (see discussion under 285c. var. multiracemosus). The variety is restricted to southern Mineral County, Nevada, and northern Inyo County, California.

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

Variety lentiginosus is widespread in the northern part of its range and is partially sympatric with vars. platyphyllidius and salinus in the southern part of its range. It is transitional to both.

(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. salinus, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, 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. 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. 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 Cystium sesquimetrale A. lentiginosus var. carinatus
Name authority (Rydberg) Barneby: Leafl. W. Bot. 4: 116. (1945) unknown
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