草原黄耆 cao yuan huang qi

Plants 10-15 cm tall, acaulescent, caespitose. Leaves 10-20 cm; stipules membranous, ovate, ca. 10 mm, shortly adnate to petiole, villous, apex long cuspidate-acuminate; petiole and rachis covered with white spreading hairs; leaflets in 6-13 pairs, elliptic, 5-15 × 3-9 mm, both surfaces subappressed hairy, apex mostly obtuse. Racemes subsessile, crowded at base of petioles. Calyx tubular, ca. 10 mm, long white hairy; teeth subulate, 2.5-3 mm. Petals white; standard ovate, ca. 12 mm, rounded at apex; wings longer than standard, ca. 16 mm; keel slightly longer than wings, ca. 17 mm. Legumes erect, ovoid-ellipsoid, ca. 10 mm, compressed laterally; valves densely white hairy.

● Nei Mongol.