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Photo is of parent taxon

prostrate milkvetch, reclining weedy milkvetch

Photo is of parent taxon

Garrett's weedy milkvetch, timber milkvetch

Herbage

strigulose, hairs obscurely malpighian, silvery-silky, ± straight.

strigose, hairs basifixed.

Stems

1–15(–22) cm.

1–11(–15) cm.

Leaves

1.5–9(–12) cm;

leaflets (7 or)9–15(or 17), blades narrowly elliptic to oval-lanceolate, leaflets subtending racemes more broadly elliptic or oblanceolate, (2–)4–16(–20) mm, apex acute to obtuse, surfaces pubescent;

terminal leaflet decurrent or jointed.

(1.5–)2.5–9(–10.5) cm;

leaflets (3–)7–11, blades linear, narrowly linear-elliptic, or (distally) filiform-subulate, 2–10(–20) mm, apex sharply acute, surfaces pubescent or glabrescent.

Racemes

(4–)7–17-flowered;

axis 1–3(–4) cm in fruit.

3–6(–12)-flowered;

axis 1–5(–7.5) cm in fruit.

Flowers

calyx 2.8–4.3 mm, tube 1.8–2.5 mm, lobes 0.9–1.9 mm;

corolla usually pink-purple, purplish, bluish, or dull purple, sometimes pallid or whitish, except maculate keel;

banner 6.9–9.6 mm;

keel 6.2–7.8 mm.

calyx 2.4–3.5 mm, tube 1.9–2.5 mm, lobes 0.5–1.1 mm;

corolla usually whitish or suffused, rarely ochroleucous;

banner 6–8 mm;

keel 5.9–7 mm.

Legumes

linear-oblong or -oblanceoloid, (12–)14–21 × 2.2–3.3 mm.

linear (in profile), 12–16 × 2–2.7 mm, strigulose.

Seeds

12–18.

8–12.

Astragalus miser var. decumbens

Astragalus miser var. tenuifolius

Phenology Flowering May–Aug. Flowering Jun–Aug.
Habitat Banks, hillsides, bluffs, ridge crests, with sagebrush, with limber pine and juniper. Hillsides, bluffs, mountain crests, in sagebrush.
Elevation 1100–2600 m. (3600–8500 ft.) 1600–3200 m. (5200–10500 ft.)
Distribution
from FNA
ID; MT; WY
[BONAP county map]
from FNA
ID; MT; NV; UT; WY
[BONAP county map]
Discussion

Variety decumbens occurs from southern Montana on the Yellowstone River, southward (mostly eastward of the Continental Divide except on upper Green River) to central Wyoming.

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

Variety tenuifolius is most abundant in eastern Idaho with a range that extends into southwestern Montana, western Wyoming, northeastern Nevada, and northern Utah.

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

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Genistoidei > Astragalus miser Fabaceae > subfam. Faboideae > Astragalus > sect. Genistoidei > Astragalus miser
Sibling taxa
A. miser var. crispatus, A. miser var. hylophilus, A. miser var. miser, A. miser var. oblongifolius, A. miser var. praeteritus, A. miser var. serotinus, A. miser var. tenuifolius
A. miser var. crispatus, A. miser var. decumbens, A. miser var. hylophilus, A. miser var. miser, A. miser var. oblongifolius, A. miser var. praeteritus, A. miser var. serotinus
Synonyms Homalobus decumbens Homalobus tenuifolius
Name authority (Nuttall) Cronquist: Leafl. W. Bot. 7: 18. (1953) (Nuttall) Barneby: Leafl. W. Bot. 7: 195. (1954)
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