Potentilla hypargyrea Hand.-Mazz.

Herbs perennial. Roots robust, terete. Rhizomes often enlarged. Flowering stems tufted, ascending, 5–16 cm tall, recumbent white villous. Radical leaves 6–10 cm including petiole; stipules brown, membranous, abaxially white pilose, apex acuminate; petiole villous; leaf blade 3-foliolate or subpinnate; terminal leaflet shortly petiolulate, lateral ones sessile or subsessile, all leaflets orbicular to ovate, 1–3 cm, abaxially sparsely white villous, adaxially densely white sericeous, margin irregularly parted or lobed, or pinnately parted, usually 2-parted on lateral leaflets; segments acute at apex; cauline leaves 1 or 2; stipules herbaceous, abaxially white sericeous, margin parted into acuminate segments; leaflet margin parted into linear-lanceolate, acuminate segments. Inflorescence cymose, (1 or)2- or 3-flowered. Flowers 0.6–1.3 cm in diam.; pedicel 1.5–3 cm, villous. Sepals triangular-ovate, apex acute; epicalyx segments lanceolate or elliptic-lanceolate, shorter than or nearly equaling sepals, abaxially densely appressed villous, apex acute. Petals yellow, obovate, nearly 1/2 as long as sepals, apex emarginate. Style subterminal, base slightly thickened; stigma not dilated. Achenes smooth. Fl. and fr. Aug–Sep.

Xizang, Yunnan.

Thickets on grassy slopes, meadows on mountain slopes, rocky slopes; 3300--4800 m.

Potentilla hypargyrea adalah spesies tumbuhan yang tergolong ke dalam famili Rosaceae. Spesies ini juga merupakan bagian dari ordo Rosales. Spesies Potentilla hypargyrea sendiri merupakan bagian dari genus Potentilla. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Hand.-Mazz..

Potentilla hypargyrea là loài thực vật có hoa trong họ Hoa hồng. Loài này được Hand.-Mazz. miêu tả khoa học đầu tiên năm 1933.

白背委陵菜（学名：Potentilla hypargyrea）是蔷薇科委陵菜属的植物，为中国的特有植物。分布在中国大陆的云南等地，生长于海拔3,300米至4,000米的地区，多生于山坡草地及岩石缝中，目前尚未由人工引种栽培。