8) 해바라기족 Heliantheae

두화는 암꽃인 설상화와 통상화로 되어 있고 꽃밥 밑이 뾰족하거나 둔하며 암술대의 열편은 선형 또는 장타원형이고 뒷면에 털 또는 젖꼬지 같은 돌리가 있으며 열매에 관모가 없고 때로 가시 또는 선상 인편이 있다.

1. 화서탁에 인편이 없고 양성화는 결실하지 않으며 잎은 호생하고 심장형이다.

2. 총포편은 떨어져 있다 ···················································································································669. 멸가치

2. 총포편은 붙어 있다 ·························································································································천수국속

1. 화서탁에 인편이 있고 두화는 1 가화이다.

3. 설상화의 통부는 수과에 붙어서 떨어진다   ··························································································673. 백일홍

3. 설상화는 수과에서 떨어진다.

4. 관모는 없거나 수가 적다.

5. 수과는 커져서 원주형이나 4각형으로 된다.

6. 총포편은 끝까지 붙어 있고 수과는 네모가 지며 줄이 있다  ··························································674. 하늘바라기

6. 설상화의 수과는 세모가 지고 총포편은 떨어진다.

7. 총포편은 옆으로 퍼지고 대가 있는 선과 더불어 다른 물체에 붙는다   ···················································진득찰속

7. 안쪽 총포편은 편평하고 수과를 감싸지 않는다.

8. 화상의 인편은 가늘고 관모가 없거나 2 개의 짧은 까락이 있다  ·····················································678. 한련초

8. 화상의 인편은 안쪽이 오목하여 소화를 다소 감싼다.

9. 관모가 없다 ················································································································삼잎국화속

9. 관모는 인편상이다.

10. 두상화서애 임성 설상화가 있다   ···················································································갯금불초속

10. 두상화서에 불임성 설성화가 있다  ·················································································해바라기속

5. 수과는 뒷면이 다소 편압되었다.

11 관모는 인편상 또는 까락 같거나 없다.

12. 수과의 가장자리는 날개가 있거나 두껍다 ···················································································금계국속

12. 수과에 관모와 날개가 없다 ································································································688. 달리아

11. 관모는 남아 있고 밑을 향한 가시 같은 것이 있다.

13. 열매 끝에 부리가 있다   ··································································································689. 코스모스

13. 열매 끝에 부리가 없다   ······································································································가막사리속

4. 관모는 수가 많고 떨어져 있다   ···································································································697. 쓰레기꽃