FLORA OF VIETNAM Verbenaceae Clerodendrum chinense (Osbeck) Mabb.
N.Vietnam, Thanh Hoa Prov., Quan Hoa Distr., Phu Le Municipality, Hang village, around point 20°31′48′'N, 105°04′40′'E. Dry secondary shrubs on clayey shale/sandstone/quartzite slope of river valley at foothills of rocky ridge composed with crystalline marble-like highly eroded limestone at elev. 100-200 m. Herb or semishrub 1-1.5 m tall in open place. Flowers white. Very common. Widespread commonest weed in the area.