FLORA OF VIETNAM Plants of Halong Bay National Park Crassulaceae Calanchoe sp.
Vietnam, Quang Ninh Prov., Ha Long city, Ha Long Bay, around Trinh Nu Cave at elev. 20-40 m a.s.l.
Secondary closed broad-leaved evergreen forest and shrubs on very steep rocky slopes and cliffs of remnant island mountains composed with solid highly eroded crystalline limestone.
Lithophytic herb on open coastal rock outcrops. Flowers brightly red. Not common.