무궁화속 Hibiscus LINN.

1. 꽃은 황색이다.

2. 초본식물이다 ······························································································································1162. 닥풀

2. 목본식물이다    ····························································································································1163. 황근

1. 꽃은 황색이 아니다.

3. 초본식물이다   ··························································································································1161. 수박풀

3. 목본식물 또는 반관목이다.

4. 잎은 난형이며 3개로 얕게 갈라지고 밑은 예저이다     ··········································································1164. 무궁화

4. 잎은 5 각상 심원형이며 3-7 개로 갈라진다    ·······················································································1165. 부용