Astragalus didymocarpus Hook. & Arn.

Hesperastragalus catalinensis (Nutt.) Rydb. bull. Torrey Club 53: 169. 1926.
Astragalus catalinensis Nutt. Proc. Acad. Phila. 4: 9. 1848.
An annual; stem branched at the base, 1-3 dm. high, sparingly strigulose; leaves 3-5 cm. long, ascending; stipules deltoid, 2-4 mm. long; leaflets 11-17, narrowly linear, 4-12 mm. long, deeply notched into 2 acute teeth at the apex, glabrous above, pilose or strigose beneath; peduncles 3-5 cm. long; racemes dense, oblong, 1-1.5 cm. long; bracts lanceolate, 1-2 mm. long; calyx black -hairy, the tube 1.5-2 mm. long, the teeth subulate, 1-1.5 mm. long; corolla 5-7 mm. long, purple or white; petals similar to those of //. didymocarpus; pod nearly globose, nearly 3 mm. long, pubescent with comparatively short crisp hairs; seeds mostly solitary in each cavity.
Type locality: Island of Catalina, California. Distribution: Southern California and Lower California.