The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links
Photo is of parent taxon

freckled milkvetch, White Mountains milk vetch

Photo is of parent taxon

freckled milkvetch, straw milkvetch

Habit Plants perennial, 5–10(–20) cm, herbage subappressed-strigulose. Plants perennial (short-lived), 12–40(–65) cm, herbage cinereous or green.
Stems

ashy canescent or green.

Leaves

4–9 cm;

leaflets (13–)17–27, distant, blades oblanceolate, oblong-oval, or oblong-elliptic, 2–9 mm, apex obtuse or emarginate.

(2.5–)4–11(–13) cm;

leaflets (9 or)11–15, blades broadly oblanceolate or obovate-cuneate, (3–)5–18 mm, apex openly notched.

Racemes

6–10-flowered, short and compact in fruit;

axis 1–3 cm in fruit.

loosely or remotely 15–25(–30)-flowered, lax and open in fruit;

axis 5–18 cm in fruit.

Peduncles

0.6–1.5 cm.

3.5–9 cm.

Flowers

10.4–12 mm;

calyx 5.2–7.3 mm, tube 3.6–5 mm, lobes 1.5–2.6 mm;

corolla whitish.

11–12 mm;

calyx 5–6.6 mm, tube 3.8–4.5 mm, lobes 1.2–2.1 mm;

corolla pale purple.

Legumes

mottled, ovoid-acuminate, bladdery-inflated, 11–20(–23) × 6–12 mm, papery, sparsely strigulose;

beak incurved, deltoid, 4–7 mm, unilocular.

greenish, usually mottled, becoming stramineous, obliquely ovoid-acuminate, bladdery-inflated, (10–)17–26 × 10–16 mm, bilocular, somewhat stiffly papery, opaque, strigulose;

beak (2–)3–7 mm, unilocular.

Seeds

13–15.

20–26.

2n

= 22.

Astragalus lentiginosus var. semotus

Astragalus lentiginosus var. stramineus

Phenology Flowering Jun–Aug. Flowering Apr–May.
Habitat Among sagebrush, with bristle­cone pine. Mixed warm-desert shrub communities.
Elevation 2100–3500 m. (6900–11500 ft.) 900–1000 m. (3000–3300 ft.)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
AZ; NV; UT
[BONAP county map]
Discussion

Variety semotus, similar to var. ineptus, occurs in the Inyo and White mountains in Inyo and Mono counties, California, and Esmeralda County, Nevada.

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

Variety stramineus is the only member of the species with moderate-sized, pale purple flowers known to occur in Washington County in Utah, and adjacent Arizona and Nevada; it is similar to the slightly smaller-flowered var. fremontii and to var. ambiguus.

(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. 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. 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. 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 stramineum
Name authority Jepson: Fl. Calif. 2: 357. (1936) (Rydberg) Barneby: Leafl. W. Bot. 4: 122. (1945)
Web links