Petrocodon hunanensis X.L. Yu & Ming Li
Petrocodon Hance Perennial herbs, terrestrial stem subterete, with distinct internodes, 5–20 cm long, ca. 5 mm in diameter. Leaves crowded at the top of the stem; leaf blade thickly papery, ovate, 2–3.2 × 1–2.5 cm, apex slightly acuminate to obtuse, base cuneate...