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Photo is of parent taxon

pohil's milkvetch, pohl's milkvetch

Photo is of parent taxon

yucca freckled milkvetch, yucca milkvetch

Habit Plants perennial, 7–20 cm. Plants winter-annual or short-lived perennial, clump-forming, 15–60(–100) cm.
Stems

erect and ascending.

Leaves

(4–)5–9 cm;

leaflets 11–17, blades broadly obovate-cuneate or suborbiculate, 4–11 mm, apex obtuse or retuse to emarginate.

(5–)7–16 cm;

leaflets 13–21(–25), blades broadly elliptic, oval, rhombic-obovate, or obovate, (4–)6–21 mm, apex retuse or emarginate.

Racemes

shortly and loosely 3–9-flowered, short and compact in fruit;

axis 1–3.5 cm in fruit.

loosely (12–)15–32-flowered, lax and open in fruit;

axis early elongating, (4.5–)6–14 cm in fruit.

Peduncles

1–4 cm.

(3–)5–10 cm.

Flowers

20–23 mm;

calyx 8.5–10.5 mm, tube 8–10 mm, lobes 2.4–3 mm;

corolla whitish tinged with violet.

11–15.6 mm;

calyx 6–7.5 mm, tube 4.4–5.7 mm, lobes (1.3–)1.5–2.4 mm;

corolla white or ochroleucous, concolorous, sometimes fading pale bluish, petals poorly graduated, banner slightly longer than wings, wings and keel nearly equal length.

Legumes

pale green or purple-speckled becoming stramineous or brownish, plumply ovoid, strongly inflated, 23–33 × 10–15 mm, ± bilocular, leathery or stiffly papery, minutely strigulose;

beak 5–15 mm, unilocular;

stipe 0.5–1.5 mm.

stramineous, plumply ovoid-acuminate or subglobose, strongly inflated, 15–25(–32) × 10–18 mm, bilocular, papery-membranous, subtranslucent, usually glabrous, rarely minutely strigulose;

beak 3–7 mm, unilocular.

Seeds

24–32.

17–26.

2n

= 22.

Astragalus lentiginosus var. pohlii

Astragalus lentiginosus var. yuccanus

Phenology Flowering May–Jun. Flowering Feb–May.
Habitat Greasewood, shadscale, horse­brush, and big sagebrush communities, vegetated sand dunes. Open sandy plains, sandy or rocky washes, gulches in foothills of desert mountains, with Larrea and in yucca-grasslands.
Elevation 1300–1700 m. (4300–5600 ft.) 500–1100 m. (1600–3600 ft.)
Distribution
from FNA
UT
[BONAP county map]
from FNA
AZ; NV
[BONAP county map]
Discussion

Variety pohlii is restricted to the Rush and Skull valleys in Tooele County. The shortly stipitate fruit is unusual among varieties of Astragalus lentiginosus.

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

Variety yuccanus occurs in west-central Arizona, barely entering Nevada in the southern tip of Clark County.

(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. 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. 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
Name authority S. L. Welsh & Barneby: Iselya 2: 1. (1981) M. E. Jones: Contr. W. Bot. 8: 3. (1898)
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