나비나물속 Vicia LINN.

1. 꽃은 잎겨드랑이에 1 개에서 3 개까지 달리지만 화서축이 없다.

2. 소엽은 너비 10mm 이하이다.

3. 소엽은 길이 15~30mm 이고 너비 2~6mm 이다 ··············································································· 904. 살갈퀴

3. 소엽은 길이 15~25mm 이고 너비 4~6mm 이다 ············································································ 905. 가는갈퀴

2. 소엽은 너비 10~15mm 이다 ································································································· 906. 구주갈퀴덩굴

1. 꽃은 총상화서에 달린다.

4. 꽃은 길이 1cm 이하이다.

5. 꽃은 5 개이하가 달린다

6. 한 꽃차례에 1~3 개의 꽃이 달린다 ······················································································· 907. 얼치기완두

6. 한 꽃차례에 3~7 개의 꽃이 달리고 꼬투리에 털이 있다 ···································································· 908. 새완두

5. 꽃은 5 개이상 달리고 소엽은 2~13 쌍이다 ················································································ 909. 가는등갈퀴

4. 꽃은 길이 1cm 이상이다.

7. 덩굴손이 있다.

8. 덩굴손은 대개 갈라진다.

9. 소엽은 5~12 쌍이다.

10. 꽃받침 앞열편의 길이는 통부의 길이와 같거나 길다. 꽃은 길이 1.4-1.5 cm 이고 식물체에 털이 많다 ·················· 910. 베치(털갈퀴덩굴)

10. 꽃받침 앞열편의 길이는 통부의 길이보다 짧다.

11. 소엽의 주맥과 측맥의 각도는 40도 이상이다.

12. 소엽은 털이 다소 있고 담녹색이며 꽃받침잎은 3각형이고 뚜렷하다 ······································ 911. 넓은잎갈퀴

12. 소엽은 털이 거의 없거나 전혀 없고 황흑색이며 꽃받침잎은 뚜렷하지 않다  ·································· 912. 벌완두

11. 소엽의 주맥과 측맥의 각도는 30도 미만이다.

13. 식물체는 마르면 붉은빛이 도는 암갈색으로 변한다 ···························································· 913. 갈퀴나물

13. 식물체는 말라도 암갈색으로 변하지 않으며 소엽은 8~12 쌍이고 꽃은 길이10~12mm 이다 ·········· 914. 등갈퀴나물

9. 소엽은 2~5 쌍이며 요두 또는 절두이다 ······················································································ 915. 들완두

8. 덩굴손은 흔히 갈라지지 않으며 소엽은 2-5 쌍이다  ········································································ 916. 큰등갈퀴

7. 덩굴손이 없다.

14. 털이 없다.

15. 잎은 너비 1cm 이상이다.

16. 소엽은 3~7쌍이다.

17. 소엽은 1-3쌍이다 ··································································································918. 네잎갈퀴나물

18. 꼬투리는 위를 향한다   ····································································································917. 잠두

18. 꼬투리는 밑을 향한다

17. 소엽은 3-7쌍이다.

19. 소엽은 3-7쌍이다 ····································································································919. 광릉갈퀴

19. 소엽은 2-4쌍이다  ····································································································920. 노랑갈퀴

16. 소엽은 1 쌍이다.

20. 소엽은 너비 2~4cm이다  ······························································································921. 나비나물

20. 소엽은 너비 4~15mm 이다   ····················································································922. 긴잎나비나물

15. 잎은 너비 lcm 이하이다.

21. 소엽은 2~6쌍이다  ········································································································923. 연리갈퀴

21. 소엽은 3~6쌍이다   ·································································································924. 가는갈퀴나물

14. 꽃받침에 털이 있고 소엽은 3~5쌍이다  ······················································································925. 나래완두