민들레아과 Liguliflorae

식물체에 유관이 있고 두화는 모두 양성 설상화이며 암술대 열편은 가늘고 겉에 짧은 잔털이 돋아있다. 열매는 끝이 가늘거나 비늘조각 같은 관모가 있다.

1. 관모는 비늘 또는 털같이 생겼거나 없다.

2. 꽃은 황색이고 관모가 없다 ············································································································ 개보리뺑이속

2. 꽃은 남색이고 관모가 있다  ············································································································· 748. 꽃상추

1. 관모는 깃털같이 생기거나 딱떡한 털 같다.

3. 관모에는 깃 같은 털이 있다.

4. 화상에 딱딱한 털 같은 것이 있다.

5. 줄기에 달린 잎은 정상적이며 잔톱니가 있다   ··················································································749. 금흔초

5. 줄기에 달린 잎은 특히 작으며 뿌리에서 돋은 잎은 깃처럼 갈라진다   ················································· 750. 서양금흔초

4. 화상에 딱딱한 털이 없다.

6. 관모의 깃 같은 털은 엉킨다  ············································································································ 쇠채속

6. 관모의 깃 같은 털은 엉키지 않는다   ··························································································753. 쇠서나물

3. 관모는 거센 털처럼 딱딱하다.

7. 수과는 끝이 부리처럼 가늘어지고 밑에 돌기가 있다 ·················································································민들레속

7 수과는 부리가 없으며 있을때는 돌기가 없다-

8. 수과는 절두이다.

9. 수과는 윈주형이다 ··············································································································· 조밥나물속

9. 수과는 다소 편평하다.

10. 관모는 한 줄이며 수가 작다  ································································································· 761. 께묵

10. 관모는 수가 많다 ················································································································ 왕씀배속

8. 수과는 끝이 좁아지거나 부리같이 길어진다.

11. 아관목으로 원줄기는 뿌리에서 돋은 잎이 있으며 꽃자루는 옆에 달린다     ·······································764. 갯고들빼기

11. 초본으로 원줄기 끝에 꽃차례가 달린다.

12. 수과는 다소 편평하며 균일한 10 개의 능선이나 날개가 있다   ····························································씀바귀속

12. 수과의 능선은 같지 않으며 날개로 되지 않는다.

13. 수과는 뚜렷하게 편평하며 끝에 부리가 있다    ·············································································상추속

13. 수과는 다소 편평하며 끝이 좁아지지만 부리로 되지 않는다.

14. 관모는 환상으로 떨어져 있다     ·······················································································방가지똥속

14. 관모는 떨어져 있지 않거나 1 개씩 떨어져 있다  ·····································································고들빼기속