Lahontan Milkvetch

Homalobus porrectus (S. Wats.) Rydb. Bull. Torrey Club
51: 19. 1924.
Astragalus porrectus S. Wats. Bot. King's Expl. 75. 1871. Tragacantha porrecta Kuntze, Rev. Gen. 947. 1891.
A perennial; stems 3-6 dm. high, sparingly strigose or glabrate; leaves 6-10 cm. long; stipules large, membranous, triangular, acuminate, 4—5 mm. long, the lower ones sheathingconnate; leaflets 8-13, broadly obovate, 8-15 mm. long, 7-12 mm. wide, glabrous above, sparingly strigose (especially along the margin and the midrib) or glabrate beneath, rounded or slightly emarginate at apex; peduncles 5-10 cm. long; racemes many-flowered, in fruit elongate, 1-2 dm. long; calyx sparingly hispidulous-strigose with black hairs, the tube 4-4.5 mm. long, 3 mm. broad, the teeth subulate, 3 mm. long; corolla yellow; banner obovate, with abroad claw, 12 mm. long; wings about 10 mm. long, the blade obliquely oblanceolate, acute at the apex, about equaling the claw, with a rather large oblong basal auricle; keel-petals S mm. long, the blade about equaling the claw, obliquely semicircular, rounded at the apex, with a small rounded basal auricle ; pod glabrous, stipitate, strongly bent at the union of the stipe and the body, the stipe 4-6 mm. long, the body oblong, arcuate, erect, about 1.5 cm. long, 4 mm. wide; seeds obliquely reniform, 3 mm. long, 1.5 mm. broad.
Type locality: Trinity Mountains, Nevada.
Distribution: Western Nevada.