海州常山(Clerodendrum trichotomum)又名臭梧桐,为马鞭草科、海州常山属落叶灌木,株高可达8米。原产我国河北、河南、山西及华东、华中等地。海州常山嫩枝和叶柄有黄褐色短柔毛,枝髓部有淡黄色薄横隔,冬芽叠生。单叶对生,全缘,宽卵形或三角状卵形,长5￣16厘米,宽3￣13厘米,先端渐尖,基部宽楔形, Haizhou Changshan (Clerodendrum trichotomum), also known as stinky Indus, Verbenaceae, Haizhou Changshan is a deciduous shrub, up to 8 meters in height. Origin of China’s Hebei, Henan, Shanxi and East China, Central China and other places. Changzhou Shanhaiguan shoots and petioles have brown pubescence, branches of thin yellowish thin diaphragm, winter buds stacked over. Single leaves opposite, entire, broadly ovate or triangular-ovate, 5-16 cm long, 3-13 cm wide, apex acuminate, base broadly cuneate,