Petrocosmea × longianthera Z.J. Qiu & Y.Z. Wang
Petrocosmea Oliv. Perennial acaulescent herb with short rhizome andcrowded fibrous roots. Rosette leaves 6 to 30, the innerleaves have short petioles or petioles absent, the outerleaves have longer petioles; leaf blade rhombic, 0.5–3 × 0.5–3 cm, herbaceous, apex round, base truncate orcuneiform,...