Comprehensive Description
provided by North American Flora
Homalobus lancearius (A. Gray) Rydb. Bull. Torrey
Club 40: 52. 1913.
Astragalus lancearius A. Gray. Proc. Am. Acad. 13: 370. 1878.
A perennial, with a rootstock or caudex; stems 3-5 dm. high, glabrous, flexuose; leaves 8-10 cm. long; stipules deltoid, 3 mm. long, free or nearly so; leaflets 5-9, linear or linear-filiform, about 1 cm. long, 1 mm. wide, strigose, involute, the terminal one often wanting and represented by the prolonged rachis; peduncles about 1 dm. long; racemes several-flowered; bracts subulate, 1-2 mm. long; calyx strigulose with short black hairs, the tube 3-4 mm. long, the teeth about 1 mm. long; corolla white, the keel purple-tipped ; banner narrowly obovate, slightly notched, 12-14 mm. long; wings shorter, the blade oblong, falcate, obtuse, equaling the claw, with a large reflexed auricle; keel-petals broader, S-9 mm. long, the blade lunate, rounded at the apex, tipped with purple; pod broadly oblong, acute at each end, 18-25 mm. long, 6 mm. wide, glabrous or sparingly strigose when young; seeds obliquely reniform, 3 mm. long.
Type locality: Near Beaverdam, on Rio Virgen, northwestern Arizona.
Distribution: Southern Utah and northern Arizona.
- bibliographic citation
- Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY
