Petrocosmea longituba M. Q. Han & Yan Liu
Petrocosmea Oliv. Perennial herbs, rosettes, with short rhizome and crowdedfibrous roots. Leaves 6–10, all basal, crowded; leaf bladescordate, 0.3–2 × 0.2–2 cm, apex obtuse, base cordate,margin entire to crenate, both surfaces densely veins 4–5; petioles 0.5–4 cm long, densely pubescent.Cymes 3–10,...