물푸레나무과 Oleaceae

1. 열매는 시과이다.

2. 잎은 단엽이며 가장자리가 밋밋하다.

3. 꽃잎은 붙어 있다  ····················································································································98. 미선나무

3. 꽃잎은 작고 떨어져 있다  ···········································································································99. 향선나무

2. 잎은 복엽이며 톱니가 있다 ···········································································································물푸레나무속

1. 열매는 삭과， 핵과 또는 장과이다.

4. 열매는 삭과이다.

5. 꽃은 황색이며 겨울눈 안에서는 꽃잎이 서로 포개져 있고 골 속은 계단상이며 잎에 톱니가 있다  ····························개나리속

5. 꽃은 황색이 아니고 겨울눈 안에서 꽃잎이 서로 포개져 있지 않으며 골 속은 차 있고 잎에 톱니가 없다 ················수수꽃다리속

4. 열매는 핵과 또는 장과이다.

6. 잎은 단엽이고 대생하며 꽃은 희다

7. 꽃부리 열편은 통부보다 길다   ···································································································85. 이팝나무

7. 꽃부리 열편은 통부보다 짧다.

8. 꽃은 정생 원추화서 또는 총상화서에 달린다   ················································································쥐똥나무속

8. 꽃은 잎겨드랑이에 모여달린다 ·········································································································목서속

6. 잎은 복엽이고 대생하며 꽃은 황색이다   ···························································································108. 영춘화