쥐손이풀속 Geranium L..

1. 꽃의 지름은 1.5 cm 이하이다.

2. 원뿌리가 있다 ························································································································ 981. 쥐손이풀

2. 원뿌리가 없다.

3. 잎은 3 개로 갈라진다.

4. 잎은 밑부분 외에는 3 개로 깊게 갈라지고 끝이 뾰족하다 ······························································ 982. 세잎쥐손이

4. 잎은 3개로 완전히 갈라지고 측열편이 다시 2개로 갈라지기도 한다 ···················································· 983. 좀쥐손이

3. 잎은 3~5 개로 깊게 갈라지고 선모와 퍼진 털이 있다 ·········································································· 984. 이질풀

1. 꽃의 지름은 2~3 cm이다.

5. 턱잎이 서로 떨어져 있다.

6. 밑을 향한 털이 있다.

7. 잎은 5 개로 갈라진다.

8. 수술에 긴 털이 있고 꽃은 2 개씩 달린다 ···················································································985. 선이질풀

8. 소화경에 선모가 있고 꽃은 10 개 이상 달린다 ··········································································986. 털귀손이

7. 잎은 5 개로 갈라지고 수술에 털이 밀생한다 ················································································· 987. 참이질풀

6. 털은 위 또는 옆을 향한다.

9. 잎은 7~8개로 갈라지고 꽃은 2개씩 달리며 소화경은 꽃이 핀 다음 뒤로 굽는다 ········································ 988. 산쥐손이

9. 잎은 3~5 개씩 갈라진다.

10. 밑을 향한 흰 털이 밀생하며 꽃은 2-3개씩 달리고 암술대 가지는 길이 4mm 이다 ······························989. 분홍쥐손이

10. 퍼진 잔털과 긴 털이 밀생하고 꽃은 2개씩 달리며 열매에 털이 있다. 암술대 가지의 길이는 6mm 이다 ············ 990. 우단쥐손이

5. 턱잎이 붙어 있다.

11. 털이 없다 ·························································································································991. 둥근이질풀

11. 털이 있다.

12. 털이 밑을 향한다.

13. 잎은 5~7 개씩 갈라지고 씨방에 털이 있다 ··············································································992. 삼쥐손이

13. 잎은 3-5 개로 갈라진다 ·····································································································993. 섬쥐손이

12. 누운 털이 있으며 잎은 3-5 개씩 갈라진다 ············································································994. 큰세잎쥐손이