FLORA OF VIETNAM Plants of Halong Bay National Park Gesneriaceae Chirita drakei B.L.Burtt.
Vietnam, Quang Ninh Prov., Ha Long city, Ha Long Bay, Ang Du locality.
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 at elev. 10-20 m a.s.l.
Lithophytic succulent herb up to 0.5 m tall on open steep rock outcrops and vertical cliffs. Flowers blue-violet. Very common.