닭의장풀과 Commelinaceae

1. 열매는 벌어진다.

2. 완전한 수술은 6개이다.

3. 덩굴식물이다 ·················································································································· 487. 덩굴닭의장풀

3. 곧추자란다  ······················································································································ 488. 자주닭개비

2. 완전한 수술은 2~3개이다.

4. 꽃차례에 주걱 같은 포가 없다 ···································································································· 489. 사마귀풀

4. 꽃차례에 주걱 같은 포가 있다.

1. 열매는 벌어지지 않는다 ··············································································································· 486. 나도생강

닭의장풀속 Commelina LINN.

1. 잎은 너비 1 ~2.5cm 이고 털이 없거나 약간 있다 ··················································································490. 닭의장풀

1. 잎은 너비 1cm 이고 뒷면에 털이 있다 ·····························································································491. 좀닭의장풀