FLORA OF VIETNAM Acanthaceae Strobilanthes hossei C.B. Clarke Det.: Yun-Fei, Deng 2008
N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Thanh Son Municipality, middle part of Pu Luong range around point 20°28′14′'N, 105°05′34′'E. Primary evergreen seasonal broad-leaved closed submontane forest on basalt along main ridge at elev. 1450-1550 m. Herb 0.2-0.4 m tall. Flowers blue. Very common. Co-dominant of herb forest stratum.