川滇雀儿豆 chuan dian que er dou

Chesneya polystichoides Credit: Harvard University Herbaria

Calophaca polystichoides Handel-Mazzetti, Symb. Sin. 7: 552. 1933; Spongiocarpella polystichoides (Handel-Mazzetti) Yakovlev.

Plants cushionlike. Stems woody at base, prostrate, ca. 25 mm in diam., branched, bark red-brown, with dense persistent petioles and stipules. Leaves 3-14 cm, 19-41-foliolate; stipules linear, ca. 15 mm, adnate to petiole for ca. 1/2 its length, rarely with short white hairs; axis and petiole rarely with long hairs, incurved after drying, persistent; leaflets sessile; leaflet blades dense, abaxially gray-white, adaxially dark green, oblong, ovate, or nearly orbicular, 3-11 × 2-6 mm, both surfaces hairy, base conspicuously oblique, apex rounded, seldom truncate or emar­ginate. Flowers solitary; pedicels 10-20 mm, with spreading white long hairs; bracts linear; bracteoles slightly shorter than bracts. Calyx tubular, 12-15 × 5-7 mm, rarely with long hairs, gibbous at base, inflated on one side; teeth triangular-lanc­eolate, ca. 1/2 as long as tube. Corolla yellow; standard 20-22 mm, lamina oblong, with dense white short hairs abaxially; keel 15-17 mm, auriculate, ca. as long as wings. Ovary sessile, gla­brous. Legume narrowly elliptical, 2.5-3.5 cm × ca. 8 mm, leathery, slightly applanate, glabrous. Fl. Jul, fr. Aug.

● Slopes, on rocks, meadows; 3400-4400 m. Sichuan, Xizang, Yunnan.