개정향풀속 Apocynum LINN.

1. 잎은 원줄기에서는 호생하고 가지에서는 대생하며 자루가 있다 ·································································137. 개정향풀

1. 잎은 대생하며 대가 없다     ·············································································································138. 수궁초