정금나무속 Vaccinium LINN.

1. 잎은 상록성이다.

2. 잎에 톱니가 있고 꽃은 잎사이에서 자라는 총상화서에 달리고 열매는 검다 ·················································· 33. 모새나무

2. 잎에 톱니가 뚜렷하지 않고 꽃은 정생 총상화서에 2~3 개씩 달리며 열매는 붉다 ················································ 34. 월귤

1. 잎은 낙엽성이다.

3. 열매는 붉게 익는다. 잎에 톱니가 있고 열매는 가지끝에 2~3 개씩 달린다 ················································· 37. 산앵도나무

3. 열매는 겸게 익는다.

4. 잎에 톱니가 있고 꽃은 총상으로 달린다 ························································································· 35. 정금나무

4. 잎에 톱니가 없고 꽃은 1-4 개씩 달린다 ························································································· 36. 들쭉나무