Flora of North America species comparison

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Astragalus kentrophyta var. ungulatus
Photo is of parent taxon

spiny milkvetch, talon kentrophyta
Habit Plants prostrate, mat- or cushion-forming, 8–20 cm wide.
Stems

and herbage strigulose, hairs malpighian.
Leaves

0.5–1.3 cm;

stipules dimorphic, those at proximal nodes connate, those at distal nodes free and ± spine-tipped, 1.5–4 mm;

leaflets (3 or)5, blades 3–9 mm.
Peduncles

0.1–0.4 cm.
Flowers

5.2–6.5 mm;

calyx 3.6–4.7 mm, tube 1.8–2.1 mm, lobes subulate, spinulose, 1.8–2.6 mm;

corolla whitish, keel tip purplish.
Legumes

obliquely lanceoloid-acuminate, 5–7.5 × 1.6–2 mm.
Seeds

2 or 3(or 4).
2n

= 24.

Astragalus kentrophyta var. ungulatus
Phenology Flowering May–Jul.
Habitat Calcareous gravel or gravelly clay knolls and hillsides with sagebrush.
Elevation 1500–2200(–3000) m. (4900–7200(–9800) ft.)
Distribution
from FNA
CA; NV
[BONAP county map]
Discussion

Variety ungulatus contributes to the peculiar pseudo-alpine, mound- and cushion-forming vegetation on the knolls and valley floors and foothills in the high valleys of central and northeastern Nevada and Mono County, California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Ervoidei > Astragalus kentrophyta
Sibling taxa
A. kentrophyta var. coloradoensis, A. kentrophyta var. danaus, A. kentrophyta var. douglasii, A. kentrophyta var. elatus, A. kentrophyta var. jessiae, A. kentrophyta var. kentrophyta, A. kentrophyta var. neomexicanus, A. kentrophyta var. tegetarius
Name authority M. E. Jones: Proc. Calif. Acad. Sci., ser. 2, 5: 650. (1895)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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