Petrocosmea nanchuanensis Z.Y. Liu, Z.Y. Li & Z.J. Qiu
Petrocosmea Oliv. Perennial herb, with a short rhizome and crowded fibrous roots. Leaves 8 to 30, all basal, crowded, the inner leaves with short or absent petioles, the outer leaves with longer petioles; leaves broad-ovate, cordate or almost circular, 0.5–2...