Petrocodon lithophilus Y.M. Shui, W.H. Chen & Mich. Möller
Petrocodon Hance Perennial herbs. Leaves basal and opposite, leaf bladerounded or elliptic, base nearly cordate and deflective, 3–7.5 ×2–6.5 cm, 4–5-paired lateral veins and distinct abaxially, margin shallowly or deeply crenulate, apex on both surfaces; petiole 2.2–13 cm long, pubescent. Inflorescences...