当雄黄耆 dang xiong huang qi

Plants 3-4 cm tall, nearly acaulescent, subglabrous; hairs subappressed, black, 0.2-0.3 mm. Leaves 1.5-2.5 cm; stipules greenish to membranous, 3-4 mm, distinctly to high connate behind stem, glabrous; petiole 0.4-1 cm, like rachis glabrous or with scattered hairs; leaflets in 4-6 pairs, elliptic, 3-5 × 1-2.8 mm, glabrous or more rarely with scattered hairs abaxially, conspicuously and densely wrinkled when dry abaxially, apex obtuse to subacute. Racemes 1- or 2-flowered; peduncle 0.5-1 cm, glabrous or below raceme with scattered black hairs; bracts whitish membranous, ca. 3 mm, glabrous. Bracteoles present, linear-subulate, 1-2 mm. Calyx ca. 6 mm, rather densely hairy; teeth 2.5-3 mm. Petals purple violet; standard widely obovate to orbicular, 12-13 × ca. 10 mm, apex emarginate; wings ca. 10 mm; keel ca. 11 mm, limbs ca. 8 × 4 mm. Ovary with a stipe ca. 1.5 mm, glabrous. Legumes unknown.

● Xizang.