여뀌바늘속 Ludwigia LINN.

1. 잎은 길이 3-12cm 이고 꽃잎이 있으며 열매는 길이 1.5-5cm 이다 ····························································1294. 여뀌바늘

1. 잎은 길이 1-2.5cm이고 꽃잎이 없으며 열매는 길이 4-5mm이다 ····························································1295. 눈여뀌바늘