달맞이꽃속 Oenothera LINN.

1. 위쪽 잎은 톱니가 깊어져서 깃처럼 갈라지고 꽃잎은 길이 5-18mm 이다 ················································1296. 애기달맞이꽃

1. 잎은 갈라지지 않는다.

2. 잎은 짙은 녹색이고 너비 5~13mm 이며 열매는 터지면 말린다 ···························································· 1297. 달맞이꽃

2. 잎은 연한 녹색이고 너비 1~3cm 이며 열매는 터질 때 말라지 않는다.

3. 꽃잎은 길이 4cm 내외이고 열매는 길이 2cm 이하이다 ································································· 1298. 큰달맞이꽃

3. 꽃잎은 길이 1 ~2.5cm이고, 열매는 길이 2~3cm 이다 ······························································· 1297 +. 겹달맞이꽃