Comprehensive Description
provided by North American Flora
Hamosa scaposa (A. Gray) Rydb. Bull. Torrey Club 32:659. 1906.
Astragalus scaposus A. Gray, Proc. Am. Acad. 13: 366. 1878.
Astragalus candicans Greene, Bull. Calif. Acad. 1: 156. 1885. Not A. candicans Pall. 1800.
Astragalus calycosus scaposus M. E. Jones, Zoe 4: 26. 1893.
A subacaulescent, densely cespitose perennial; stems numerous, very short, silveryeaneseent; leaves 3-7 cm. long; stipules deltoid, 3-5 mm. long, canescent; leaflets elliptic to broadly obovate, 5-12 mm. long, 3-7 mm. wide, silvery-silky, rounded at the apex; peduncles 3-10 cm. long; bracts ovate, 1-2 mm. long; racemes 3-12-flowered; calyx silvery, the tube 5 mm. long, 2.5 mm. broad, the teeth deltoid, 1.5 mm. long; corolla purplish or white, 10-12 mm. long, similar to that of H. calycosa; pod oblong, strigose, acute, 15 mm. long, 3 mm. wide, and 2 mm. thick, sulcate on the lower suture, cordate in cross-section.
Type locality: Mokiah Pass, northwestern Arizona.
Distribution: Southwestern Colorado. New Mexico, Arizona, and Nevada.
- bibliographic citation
- Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY
