Gumbo Milkvetch

Phaca ampullaria (S. Wats.) Rydb. Bull. Torrey Club 40:47. 1913.
Astragalus ampullarius S. Wats. Am. Nat. 7: 300. 1873. Tragacantha ampullaria Kuntze, Rev. Gen. 943. 1891.
Perennial; stem 1-2 dm. high, sparingly strigose; leaves about 5 cm. long, spreading; stipules lanceolate or ovate, 5-7 mm. long, membranous; leaflets 7-11, obovate, rounded or retuse at the apex, 6-10 mm. long, 4—7 mm. wide, cuneate at the base, glabrous above, sparingly strigulose beneath; peduncles 2-5 cm. long; racemes headlike, 8-12-flowered; bracts lanceolate, 2-3 mm. long; pedicels 1-2 mm. long; calyx strigulose with black hairs, the tube 5-6 mm. long, 2-3 mm. wide, the teeth deltoid, 1 mm. long; corolla purple, 17-18 mm. long; banner obovate, notched at the apex; wings 15-16 mm. long, the blade lanceolate, with a large reflexed auricle; keel-petals much shorter, the blade broadly lunate; pod glabrous, long-stipitate, the stipe 1.5-2 cm. long, the body ovoid, 1.5-2 cm. long, 10-12 mm. wide.
Type locality: Kanab, Utah. Distribution: Southern Utah.