Petrocosmea qinlingensis W.T. Wang
Petrocosmea Oliv. Petiole 0.5–2.5 cm, sparsely puberulent; leaf bladebroadly ovate to rhombic-ovate or nearly orbicular,0.7–3 × 0.7–2.8 cm, sparsely appressed puberulent,base broadly cuneate, margin repand to apex rounded to obtuse; lateral veins 1-flowered; peduncle 3–5 cm, bracts 1.6–2...