耳瓣棘豆 er ban ji dou

Herbs, ca. 17 cm tall, caulescent, procumbent, with 2-4 or more apparent internodes, sparsely white pubescent. Stipules narrowly triangular, ca. 5 × 2 mm, herbaceous, with whitish tri­chomes, not adnate to petiole, connate to middle. Leaves 5-8 cm, 19-23-foliolate; leaflet blades elliptic to ovate, 6-8 × 3-4 mm, both surfaces appressed pubescent, base rounded, apex acute. Racemes compact to rather lax, 6- or 7-flowered; peduncle 4-7.5 cm, appressed pilose but below raceme crisp pubes­cent; bracts subulate, ca. 4 × 1 mm, membranous, pubescent. Calyx campanulate, 8-10 mm, with whitish and blackish tri­chomes; lobes subulate, ca. 4 × 0.5 mm, almost as long as tube. Corolla purple; standard ca. 1.2 cm, lamina ovate-triangular, ca. 7 × 5 mm, and base with 2 ca. 1.5 mm auricles, apex obliquely cuneate; wings ca. 1.1 cm, apex obliquely cuneate; keel ca. 1 cm, beak ca. 0.5 mm. Ovary long stipitate. Legume unknown. Fl. Jun-Jul.

● Grasslands. Sichuan.