1. Chesniella mongolica (Maximowicz) Borissova, Novosti Sist. Vyssh. Rast. 1964: 184. 1964.
蒙古旱雀豆 meng gu han que dou
Chesneya mongolica Maximowicz, Bull. Acad. Imp. Sci. Saint-Pétersbourg 27: 462. 1881.
Stems caespitose, prostrate, 15-25 cm, slender, with dense white long appressed hairs. Leaves 15-20 mm, 5- or 7-foliolate; stipules separate from petiole, subulate, ca. 2 mm, with dense white long hairs, with dense white glands at apex; axis and petiole with dense white long appressed hairs; leaflet blades obovate, 6-8 × 5-6 mm, abaxially with dense white long appressed hairs, adaxially with dense blue glands and rarely with hairs, base cuneate, apex blunt. Flowers solitary; pedicel 5-7 mm, with dense white hairs; bracts ca. 0.5 mm; bracteoles same shape as bracts, with glands at apex. Calyx tubular, ca. 7 mm, with dense white hairs, gibbous at base, inflated on one side; teeth lanceolate, slightly shorter than tube, upper 2 lobes almost connate, with brown glands at apex. Corolla purple; standard ca. 13 mm, lamina broadly orbicular, with dense white short hairs abaxially; wings and keel ca. as long as standard. Ovary sessile, with dense white long hairs. Legume oblong, ca. 13 × 2 mm, slightly inflated, with dense white short hairs. Fl. Aug, fr. Aug.
● Gravelly areas. Nei Mongol.