Astragalus vexilliflexus Sheldon

Homalobus amphidoxus (Blankinship) Rydberg
?Aslragalus miser A. Gray, Proc. Am. Acad. 6: 228. 1864. Not A . miser Dougl. 1831. Astragalus amphidoxus Blankinship, Mont. Agr. Coll. Stud. 1: 72. 1905. Homalobus miser Rydb. Bull Torrey Club 40: 52, in part. 1913.
A cespitose perennial, with a thick woody root; stems numerous, 1-1.5 dm. high, sparsely strigose; leaves ascending, 5-8 cm. long; stipules strigose, deltoid, 3-4 mm. long; leaflets 13-17, lanceolate to lance-linear, acute, glabrous above, strigulose beneath, 1-1.5 cm. long, 2-4 mm. wide; peduncles 4-6 cm. long; racemes 2-3 cm. long, 6-8-flowered; bracts lanceolate, 2 mm. long; pedicels 1 mm. long; calyx strigose with black hairs, the tube 2 mm. long, the teeth subulate, 1.5-2 mm. long; corolla violet-purple, S mm. long; banner obovate, notched at the apex; wings shorter, the blade obliquely obovate, with a rounded auricle; keel-petals much shorter, similar but broader, rounded at the apex; pod obliquely oval, 7-8 mm. long, 2.5 mm. wide, strigose, the upper suture nearly straight.
Type LOCALITY: Sky High, Unionville, Montana. Distribution: Montana to Washington.

Homalobus vexilliflexus (Sheldon) Rydb. Mem. N. Y Bot. Gard. 1: 249. 1900.
Astragalus pauciflorus Hook. Fl. Bor. Am. 1: 149. 1831. Not .4. pauciflorus Pall. 1800. Tragacantha pauciflora Kuntze, Rev. Gen. 947. 1891. Astragalus vexilliflexus Sheldon, Minn. Bot. Stud. 1: 21. 1894.
A perennial, with a cespitose caudex; stems many, ascending, or decumbent, 1-2 dm. high, strigose; leaves 2-5 cm. long; upper stipules lanceolate, green, 2-3 mm. long, strigose, the lower deltoid, connate, more or less purplish; leaflets 7-11, oblong, acute, 6-15 mm. long, 2-4 mm. wide, strigose beneath, slightly so or glabrate above; peduncles 2-3 cm. long; racemes short, 2-5-flowered ; bracts lanceolate, 2 mm. long; calyx strigose, the tube 2 mm. long, the teeth subulate, 1 mm. long; corolla purple; banner obovate, 6-7 mm. long, retuse; wings 5 mm. long, the blades obliquely oblanceolate, falcate, the claw short; keel-petals strongly lunate, ochroleucous, with purple rounded tip; pod elliptic, 8-10 mm. long, 3 mm. wide, acute at each end, sessile, strigose; seed almost black, rounded-reniform, 2.5 mm. long, nearly 2 mm. broad.
Type locality: Rocky Mountains, Canada.
Distribution: Saskatchewan to British Columbia and Wyoming.