싸리속 Lespedeza MICHX.

1. 관목으로서 꽃은 폐쇄화가 없고 길이 12rmn 이상이며 용골판은 끝부분이 안으로 구부러지고 꼬투리는 꽃받침 안에 짧은 대가 있다.

2. 지상부는 겨울동안 대부분 말라 죽는다 ·························································································· 869. 풀싸리

2. 지상부는 겨울동안 죽지 않는다.

3. 꽃차례 기부에 포가 있다.

4. 꽃차례 기부에 꽃이 달리지 않는다.

5. 꽃받침의 털은 조록싸리의 것과 같고 잎은 싸리와 조록싸리의 중간형이다 ····································· 870. 지리산싸리

5. 꽃받침의 털은 풀싸리의 털과 같고 잎은 참싸리와 풀싸리의 중간형이다 ·········································· 871. 고양싸리

3. 꽃차례 기부에 꽃이 달린다.

6. 잎은 첨두 원저이다 ··········································································································· 872. 조록싸리

6. 잎은 양끝이 좁아진다.

7. 잎 가장자리가 뒤로 말린다 ······························································································· 873. 해변싸리

7. 잎 가장자리가 뒤로 말리지 않는다.

8. 잔가지와 꽃차례에 퍼진 털이 있다 ················································································· 874. 털조록싸리

8. 잔가지와 꽃차례에 퍼진 털이 없다 ····················································································· 872+. 늦싸리

3. 꽃차례 기부에 포가 없다.

   9. 꽃차례는 잎보다 짧다  ············································································································875. 참싸리

   9. 꽃차례는 잎보다 길다.

     10. 꽃차례는 퍼진 털이 있다  ···································································································876. 진도싸리

     10. 꽃차례에 퍼진 털이 없다.

       11. 소화경은 풀싸리처럼 굵고 흰 털이 있다   ··················································································879. 잡싸리

       11. 소회경은 실같이 가늘다.

         12. 꽃받침은 1/2 이상 갈라지고 열편은 예첨두이다  ····································································877. 꽃참싸리

         12. 꽃받침은 1/2 이하로 갈라지고 열편은 예두 또는 둔두이다   ····························································878. 싸리

1. 지상부는 겨울 동안에 완전히 죽는다. 꽃은 폐쇄화가 있으며 길이 12mm 이하이고 용골판은 곧거나 약간 구부러지며 꼬투리는 대가 없거나 또는 거의 없다.

13. 줄기는 옆으로 벋어간다.

  14. 줄기는 때로 반 정도 서고 잎은 도란상 타원형이다  ·····································································881. 넌출비수리

  14. 줄기는 항상 옆으로 벋어간다.

    15. 꽃자루는 짧다 ·················································································································880. 팽이싸리

    15. 꽃자루는 길이 1cm 이상이다 ·····························································································880+ 긴팽이싸리

13. 줄기는 곧추서거나 비스듬히 선다.

  16. 꽃자루는 실같이 가늘다·

    17. 줄기에 퍼진 털이 있고 잎은 길이 3cm 이상 되는 것도 있다 ····························································882. 왕좀싸리

    17. 줄기에 누운 털이 있고 잎은 길이가 2cm 이하이다 ··········································································883. 좀싸리

  16. 꽃자루는 굵다.

    18. 식물체에 퍼진 털이 있다.

      19. 가지는 비스듬히 향하거나 위를 향한다 ·····················································································884. 개싸리

      19. 가지 끝은 밑으로 처진다 ···································································································885. 정비수리

    18. 식물체에 누운 털이 있다.

      20. 꽃받침잎은 길이 6mm 이상이고 각 3~7맥이다  ··········································································886. 호비수리

      20. 꽃받침잎은 길이 3mm 이하이고 각 1~5맥이다

        21. 꽃받침잎에 3-5 맥이 있다  ·······················································································887. 땅비수리(파리채)

        21. 꽃받침잎에 1 맥이 있다   ·····································································································888. 비수리