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Photo is of parent taxon

freckled milkvetch, White Mountains milk vetch

Photo is of parent taxon

freckled milkvetch, Mount Trumbull milkvetch

Habit Plants perennial, 5–10(–20) cm, herbage subappressed-strigulose. Plants perennial, 30–45(–65) cm, herbage green or subglabrescent.
Leaves

4–9 cm;

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

2–9.5(–10.5) cm;

leaflets (7–)13–17, blades broadly obovate to oblanceolate or elliptic, 5–15 mm, apex retuse to round or subacute, adaxial surface usually strigose to strigulose, sometimes glabrate or glabrous.

Racemes

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

axis 1–3 cm in fruit.

loosely 4–15(–17)-flowered;

axis elongating, 3–9.5 cm in fruit.

Peduncles

0.6–1.5 cm.

4.5–7.5 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.

13–17 mm;

calyx 6.3–7.4 mm, tube 4.8–5.5 mm, lobes 1.7–2 mm;

corolla pink- or red-purple, sometimes with pale or white wing tips.

Legumes

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

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

evidently persistent, stramineous or mottled, linear-oblong to oblong or narrowly ellipsoid, not or scarcely inflated, 17–32 × 4–5.5(–7.5) mm, ± bilocular, somewhat fleshy becoming leathery or stiffly papery, strigulose;

beak 3–5 mm, unilocular;

stipe 0.1–1 mm.

Seeds

13–15.

14–28.

2n

= 22.

Astragalus lentiginosus var. semotus

Astragalus lentiginosus var. trumbullensis

Phenology Flowering Jun–Aug. Flowering Apr (Sep).
Habitat Among sagebrush, with bristle­cone pine. Sandstone outcrops and gravel, with Agave, Ephedra, Mortonia, Purshia, and other warm-desert shrubs.
Elevation 2100–3500 m. (6900–11500 ft.) 900–1800 m. (3000–5900 ft.)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
AZ
[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 trumbullensis is restricted to Mohave County. It is closely related to vars. mokiacensis and palans, weakly differentiated by a series of features that intergrade insensibly but taken in combination are more or less diagnostic (as is true for most members of the lentiginosus complex). J. A. Alexander (2005) provided statistical evidence that this variety is indistinguishable from var. mokiacensis (as Astragalus mokiacensis), and he considered the two synonymous.

(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. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus
Name authority Jepson: Fl. Calif. 2: 357. (1936) S. L. Welsh & N. D. Atwood: Rhodora 103: 81, fig. 3. (2001)
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