차풀속 Cassia LINN.

1. 소엽은 15 쌍 이상이다 ···················································································································· 858. 차풀

1. 소엽은 6 쌍 이하이다.

2. 소엽은 3~6 쌍이고 꼬투리는 길이 10 cm 이다 ··················································································· 859. 석결명

2. 소엽은 2~4 쌍이고 꼬투리는 길이 15 cm 이다 ················································································· 860. 긴강남차