박쥐나물속 Cacalia LINN.

1. 잎집이 없고 잎은 3개 이상이다.

2. 총포편은 3 개이고 소화는 갚게 3-5 개로 갈라지며 잎은 신창형이다 ····················································· 663. 게박쥐나물

2. 총포편은 5개 이상이고 소화관은 얕게 5개로 갈라진다.

3. 총포엽은 5개이며 길이 10mm 이하이고 잎자루 밑이 귀처럼 넓어진다.

4. 총포는길이 5-6mm 이다 ···································································································· 664. 귀박쥐나물

4. 총포는길이 8~10mm이다 ································································································ 665. 나래박쥐나물

3. 총포엽은 5~6개이며 길이 13~15mm 이고 잎자루의 날개는 전체가 넓다  ········································ 666. 참나래박쥐나물

1. 잎자루 기부는 줄기를 싸서 잎집을 형성한다.

5. 잎은 손바닥모양으로 갈라진다 ····································································································· 667. 어리병풍

5. 잎은 결각상으로 갈라진다 ············································································································· 668. 병풍쌈