甘肃旱雀豆 gan su han que dou

Chesneya ferganensis Korshinsky, Zap. Imp. Akad. Nauk Fiz.-Mat. Otd. 4: 90. 1896; C. gansuensis Y. X. Liou; C. grubovii Yakovlev; Chesniella gansuensis (Y. X. Liou) P. C. Li.

Stems prostrate, 10-20 cm, with many branches, with dense spreading short hairs. Leaves 10-30 mm, 7-11-foliolate; stipules separate from petioles, ovate, ca. 2 mm, with dense short hairs, with dark brown glands at apex; axis and petiole slender, with dense spreading short hairs; leaflets obovate-lan­ceolate, 7-9 × 3-4 mm, with dense spreading white short hairs, base rounded, apex rounded, emarginate, or truncate. Flowers solitary; pedicel 8-10 mm, slender, with dense spreading short hairs; bracts ca. 1 mm; bracteoles same shape as bracts. Calyx campanulate, ca. 7 mm, rarely with short hairs; teeth linear, longer than tube, with dark brown glands at apex, upper 2 lobes almost connate. Corolla pink; standard 9-10 mm, lamina orbic­ular, with dense short hairs abaxially, apex emarginate, claw ca. 1 mm; wings 10-11 mm, claw ca. as long as lamina, ca. 1 mm; keel slightly shorter than wings, shortly clawed, without auricles. Ovary sessile, with dense short hairs. Legume nar­rowly oblong, 18-20 × ca. 5 mm, slightly inflated, with dense spreading long hairs. Fl. Jul, fr. Aug.

Dry slopes; ca. 1800 m. Gansu [Mongolia].