Astragalus perbrevis Podlech & L.R.Xu

Plants 2-3 cm tall, acaulescent, very densely caespitose, only white hairy. Leaves 1.5-3 cm; stipules 8-10 mm, adnate to petiole for 1-3 mm, densely covered with basifixed, subap­pressed to slightly ascending hairs up to 2.5 mm; petiole 0.6-1 cm, like rachis densely covered with ± medifixed, flexuous, sub­appressed to ascending hairs ca. 1 mm and with basifixed, straight, spreading hairs up to 2 mm; leaflets in 1-3 pairs, nar­rowly elliptic, 5-10 × 2-3.5 mm, both surfaces densely covered with medifixed, ascending hairs ca. 1.5 mm. Racemes sessile, few flowered; bracts 8-10 mm, rather densely covered with basifixed hairs ca. 1 mm. Calyx ca. 12 mm, densely covered with symmetrically or asymmetrically bifurcate, flexuous, sub­appressed to ascending hairs ca. 1 mm and with basifixed, straight, ascending to nearly spreading hairs 2-3 mm; teeth ca. 3 mm. Petals whitish yellow when dry; standard obovate, ca. 25 × 9 mm, apex deeply emarginate; wings ca. 22 mm, limbs nar­rowly obovate, deeply emarginate to obliquely bilobed; keel ca. 21 mm. Ovary sessile, densely white hairy. Legumes unknown.