Flora of North America species comparison

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Astragalus kentrophyta var. douglasii
Photo is of parent taxon

Douglas kentrophyta, Douglas' spiny milkvetch, spiny millk-vetch, thistle milk-vetch
Habit Plants prostrate, densely mat-forming, becoming suffruticose.
Stems

and herbage strigulose, hairs basifixed.
Leaves

1–1.7 cm;

stipules dimorphic, 2–5 mm;

leaflets 5(or 7), blades 5–12 mm, surfaces pubescent.
Peduncles

subobsolete.
Flowers

5.8 mm;

calyx 4.7–5.2 mm, tube 2.2–2.4 mm, lobes subulate, spinulose, 2.3–3 mm;

corolla whitish.
Legumes

lanceoloid, 5–5.5 × 2 mm.
Seeds

2.
2n

= 24.

Astragalus kentrophyta var. douglasii
Phenology Flowering Jun.
Habitat Sandy substrates.
Elevation 150–400 m. (500–1300 ft.)
Distribution
from FNA
OR; WA
[BONAP county map]
Discussion

Variety douglasii is known from only a few, vague historical records, probably taken near the present city of Walla Walla near the Great Bend of the Columbia River, and appears to be extinct.

(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. elatus, A. kentrophyta var. jessiae, A. kentrophyta var. kentrophyta, A. kentrophyta var. neomexicanus, A. kentrophyta var. tegetarius, A. kentrophyta var. ungulatus
Name authority Barneby: Mem. New York Bot. Gard. 13: 364. (1964)
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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