Description from Flora of China
Cypripedium guttatum Swartz var. wardii (Rolfe) P. Taylor.
Plants 10-20 cm tall. Rhizome 3-6 cm × 2-5 mm. Stem erect, rather slender, pubescent, with several sheaths at base and 2 or 3(or 4) leaves above. Leaf blade elliptic to elliptic-lanceolate, 4.5-10 × 2.5-3.5 cm, both surfaces pubescent especially on veins, ciliate, base contracted and sheathing, apex acute or subacuminate. Inflorescence terminal, 1- or 2-flowered; peduncle slender, pubescent; floral bracts foliaceous, ovate-lanceolate, 1.5-2.7 cm, pubescent and ciliate; pedicel and ovary 1-1.2 cm, densely pubescent. Flowers small, white or creamy white with purple spots on inside of lip and around its mouth. Dorsal sepal elliptic or ovate-elliptic, 14-17 × 8-10 mm, abaxially sparsely pubescent, apex obtuse or subacute; synsepal broadly elliptic, slightly shorter than dorsal sepal, abaxially pubescent, apex shallowly 2-lobed. Petals subovate-rhombic or ovate-oblong, 9-12 × ca. 6 mm, apex obtuse; lip deeply pouched, subobovoid-globose, 1.2-1.6 cm, with a broad mouth. Staminode narrowly ligulate to linear-oblong, 1-3 × 1-2.5 mm, narrower than stigma. Fl. Jun-Jul.
● Dense forests, limestone cliffs, rocks by streams; 2500-3500 m. W Sichuan (Dadu He valley), SE Xizang (Zayü), NW Yunnan (Dêqên).