Petrocosmea duyunensis Sheng H.Tang
Petrocosmea Oliv. Perennial herbs; rhizomes short, 7–8 mm in length. Leaves 10–30, basal, crowded, with long petioles up to 5 cm, petioles densely glandular pilose and sparsely villous; leaf blades papery when dry, their outer blades ovate or suborbicular, cm, the...