polychasium
1. Polychasium with inconspicuous main axis;
多歧聚伞花序有不显眼的主轴;
2. Polychasium terminal or pseudoterminal, with a conspicuous, well-developed axis;
多歧聚伞花序顶生或者假顶生,带有一个显眼,发育良好轴;
3. Corymbose polychasium leaf-opposed;peduncle 1.5-3 cm, glabrous.
花序梗1.5-3厘米,无毛。
4. Corymbose polychasium axillary;peduncle 2.5-5 cm.
花序梗2.5-5厘米。