Leaf blade margin ciliate to sharply and finely denticulate .

叶片边缘具缘毛到锐和好具小齿。

Leaf blade margin nearly entire to denticulate or crenulate .

叶片边缘近全缘到具细齿或具细圆齿。

Leaves alternate , usually distichous ; stipules entire or denticulate , usually caducous ; petiole short ; leaf blade simple , margin entire , venation pinnate .

叶互生，通常2列；托叶全缘或者具细牙齿，通常早落；叶柄短单叶，边缘全缘，羽状脉。

Leaf blade margin denticulate to serrulate .

叶片边缘具小齿到有细锯齿。

Perianth segment usually 1 , apex denticulate .

通常的花被片1，顶具小齿。