택사과 Alismataceae
1. 화상은 작고 꽃은 양성이며 수술은 6 개이다 ·······················································································택사속
1. 화상은 구형 내지 장타원형이며 꽃은 단성이고 수술은 9 개 이상이다 ························································· 벗풀속