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Photo is of parent taxon

Coachella milkvetch, Coachella Valley milk vetch, Palm Springs freckled milkvetch

Photo is of parent taxon

double-bladder freckled milkvetch, freckled milkvetch

Habit Plants winter-annual or perennial (short-lived, often flowering first year), clump-forming, (10–)15–30(–55) cm, herbage silvery-canescent, hairs to 0.7–1.2 mm. Plants perennial, (10–)15–35(–40) cm.
Stems

erect and ascending.

usually ascending, rarely prostrate.

Leaves

5–11.5 cm;

leaflets (7–)11–17(–21), blades broadly oval to obovate-cuneate or oblong-elliptic, 5–15(–17) mm, apex emarginate, or obtuse and apiculate.

3–10(–14) cm;

leaflets (11–)15–21(or 23), blades oblong-oblanceolate, obovate, rhombic-obovate, elliptic, or ovate-cuneate, 4–20 mm, apex truncate-emarginate.

Racemes

loosely 11–25-flowered, lax and open in fruit;

axis (3–)4–10 cm in fruit.

± densely becoming shortly (9–)12–24-flowered, short and compact in fruit;

axis not or little elongating, 1–4(–6) cm in fruit.

Peduncles

3.5–8 cm.

(1.5–)2.5–8.5 cm.

Flowers

12.7–14.5 mm;

calyx 6.6–7.8 mm, tube 4.5–5.3 mm, lobes 1.7–2.9 mm;

corolla pink-purple.

(12.6–)14.5–19 mm;

calyx 7–10.4 mm, tube (5.1–)5.5–8 mm, lobes 1.5–3.2 mm;

corolla pink-purple.

Legumes

usually mottled, broadly and obliquely ovoid-acuminate, greatly inflated, 16–21 × 9–14 mm, bilocular, stiffly papery, canescent-strigulose;

beak 3.5–6 mm, unilocular.

green, purple- or red-tinged, or brightly mottled, slightly incurved, mostly plumply ovoid or subglobose, (10–)14–27(–30) × (6.5–)8–18 mm, semibilocular, stiffly papery or leathery, glabrous;

beak well-defined, triangular or deltoid, (3–)4–10 mm, unilocular or bilocular.

Seeds

24–30.

28–35.

2n

= 22.

Astragalus lentiginosus var. coachellae

Astragalus lentiginosus var. diphysus

Phenology Flowering Feb–May. Flowering Mar–Jun(–Aug).
Habitat Sandy flats, washes, outwash fans, on dunes, in Larrea belt. Yucca-grasslands, pinyon-juniper forests, other xeric communities.
Elevation -10–400 m. (-0–1300 ft.) 1400–2300 m. (4600–7500 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
AZ; CO; NM
Discussion

Variety coachellae occurs at low elevations in and around the Coachella Valley in Riverside County.

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

Variety diphysus is widespread, ranging across the northern parts of Arizona and New Mexico, extending northward into western Colorado. D. Isely (1998) recognized var. macdougalii, here considered a form with diminutive fruits, from the San Francisco Peaks area of Arizona.

(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. 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. 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. 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. 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. diphysus, A. lentiginosus var. albiflorus, A. lentiginosus var. macdougalii
Name authority Barneby in F. Shreve and I. L. Wiggins: Veg. Fl. Sonoran Desert, 695. (1964) (A. Gray) M. E. Jones: Proc. Calif. Acad. Sci., ser. 2, 5: 673. (1895)
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