독말풀속 Datura LINN.

1. 잎에 털이 없다.

2. 꽃은 희고 길이 15 cm 내외이며 삭과는 둥글다    ··············································································290. 털독말풀

2. 꽃은 담자색이고 길이 8cm 정도이며 삭과는 난형이다   ·········································································291. 독말풀

1. 식물체에 털이 있으며 꽃은 희고 길이 8~10cm 이다 ··········································································· 291 +. 흰독말풀