黄毛铁线莲 huang mao tie xian lian

Vines woody. Petioles, peduncles, bracts, and pedicels yellowish velutinous. Branches smooth. Leaves pinnate, 3--5-foliolate; petiole 4--4.5 cm; leaflet blades broadly ovate to cordate, 4.5--6 × 4.5--6 cm, thick papery, undivided or 3--5-lobed, abaxially yellowish velutinous, adaxially densely yellowish strigose, base cordate, margin denticulate, apex acuminate; basal veins abaxially prominent. Cymes axillary, usually 3-flowered; peduncle ca. 1.5 cm; bracts narrowly triangular, ca. 8 mm. Flowers ca. 2 cm in diam. Pedicel ca. 1 cm. Sepal 4, brownish yellow, erect, oblong-ovate, ca. 2.2 × 1 cm, abaxially brownish yellow velutinous, adaxially appressed puberulous near apex, apex acute. Stamens ca. 1.2 cm; filaments apically pubescent; anthers narrowly oblong, 3--4 mm, glabrous, apex obtuse. Ovaries pubescent. Style ca. 1.1 cm, densely villous. Fl. Nov.

Scrub in dry valleys; ca. 1800 m. S Xizang [Bhutan, N India, Nepal].