光萼齿黄耆 guang e chi huang qi

Plants 5-8 cm tall, acaulescent or nearly so, caespitose, mostly appressed hairy. Leaves (1.5-)2-5 cm; stipules 5-8 mm, adnate to petiole for 3-4 mm, densely covered with symmetri­cally to strongly asymmetrically bifurcate, at margins also basi­fixed white hairs 0.5-1.5 mm; petiole (0.5-)1-2.5 cm, like ra­chis slender, densely to rather densely covered with ± medi­fixed white hairs 0.4-0.5 mm; leaflets in 4-6 pairs, elliptic, 3-7 × 1-3 mm, both surfaces loosely or abaxially more densely covered with medifixed hairs 0.5-0.7 mm. Racemes sessile, 1-3-flowered; bracts 4-5 mm, white hairy. Calyx 7-9 mm, densely covered with strongly asymmetrically bifurcate, flexu­ous, tangled, ± spreading, white hairs 1-1.2 mm; teeth subulate, ca. 2 mm. Petals yellow when dry; standard obovate, 20-21 × ca. 7 mm, apex emarginate; wings 17-18 mm, limbs narrowly oblong, slightly dilated toward distinctly and obliquely incised tip; keel ca. 15 mm. Ovary sessile, narrowly oblong, white hairy. Legumes unknown.

● Qinghai.