San Rafael Milkvetch

Cnemidophacos rafaelensis (M. E. Jones) Rydberg
Astragalus rafaelensis M. E. Jones, Rev. Astrag. 146. 1924.
Astragalus linifolius Osterhout, Bull. Torrey Club 55: 75. 1928.
Ctenophyllum linifolium Osterhout, Bull Torrey Club 55: 75, as synonym. 1928.
A cespitose perennial; stems many, about 5 dm. high, glabrous, somewhat striate, slightly flexuose; leaves ascending, 5-10 cm. long, the rachis filiform, channeled, with a long slender tip, without a distinct terminal leaflet; leaflets 2-4, filiform, 1-2 cm. long, less than 1 mm. wide, glabrous; stipules deltoid, connate, 2-3 mm. long; peduncles erect, slender, 1-1.5 dm. long; raceme lax, 5-10 cm. long; bracts lanceolate, 2 mm. long; calyx glabrous except the ciliolate margins, the tube 5 mm. long, the teeth subulate, 2 mm. long; corolla pink, or white tinged with pink, the keel purple-tipped; banner obovate, about 2 cm. long, moderately arched at the middle; wings IS mm. long, the blade oblong, with a reflexed basal auricle, twice as long as the claw; keel-petals 15 mm. long, the blade broadly obliquely lunate, with a small auricle; pod according to Jones reflexed, but in better specimens ascending, with both sutures prominent, elliptic-oblong, 12-15 mm. long, 5 mm. wide, and 4 mm. thick, slightly wrinkled; seed darkbrown, nearly round, 1.5 mm. long.
Type locality: Cedar Mountain, near Woodside, Utah. Distribution: Type locality and Grand Junction, Colorado.