Crescent Milkvetch - whole plant

Here's a closeup of the flower head.

Astragalus amphioxys Fabaceae (Pea family) Common names: Crescent Milkvetch Location: Glen Canyon near Bullfrog. Open desert, sandy, with slickrock. April 13, 2008. Elevation: approx 4000 feet NAD83 UTM: 12S 530250 mE 4164000 mN Dominance: Sparse. Comments: Sparse in Glen Canyon, Spring 2008, a wet spring. Source: (1) Spellenberg, Richard. (1979, 1994) National Audubon Society Field Guide to North American Wildflowers, Western Region. Alfred A. Knopf, New York. ISBN 0-394-50431-3. photo plate 490, description page 487. (2) Calphoto.

Here's a closeup of the flower head.

Here's a closeup of the flower head.