Petrocosmea viridis M.Q. Han & Yan Liu
Petrocosmea Oliv. Perennial rosular herb with short rhizomes and crowded fibrous roots. Leaves 15 to 50 per plant, all basal; petioles 1–12 mm long, purple or green, densely pilose; leaf blades ovate or elliptic to narrow elliptic, 1.5–4.0 3 3–7 mm, herbaceous, rounded or...