광대수염속 Lamium LINN.

1. 1-2년초로서 화통 안쪽 밑에 모환이 없다.

2. 포엽에 자루가 없고 꽃받침에 털이 밀생한다 ····················································································· 234. 광대나물

2. 포엽에 짧은 자루가 있고 서로 밀접하였으며 꽃받침에 털이 산생한다 ·························································· 235. 광대꽃

1. 다년초로서 꽃부리통 안쪽 밑에 모환이 있고 잎에는 자루가 있다.

3. 잎은 심장저이며 꽃부리는 희고 곁에 털이 없다 ···················································································236. 광대수염

3. 잎은 예저이다.

4 꽃은 홍자색이고 꽃부리 겉에 털이 밀생한다 ···················································································237. 호광대수엽

4. 꽃은 희고 꽃부리 겉에 털이 없다 ·······························································································238. 섬광대수염