proximal leaf pair often entire.Inflorescences often androgynous, solitary, from almost every node, male a scorpioid cyme, shorter, in the lower nodes, subsessile, many flowered;

• 雄雌同序的花序通常，单生，从几乎每节生，雄性为蝎尾状聚伞花序，短，在下部节内，近无柄，多花的；