돌꽃속 Rhodiola LINN.

1. 은 양성이며 뿌리갈라지고 잎은 길이 4~lOrnm, 너비 1~2.5mm 이다    ···············································606. 가지돌꽃

1. 꽃단성이다.

2. 꽃은 붉은빛이 도는 황이다 ·········································································································607. 돌꽃

2. 꽃은 황색이다.

3. 잎은 너비 5~15mm 이분백색이며 암히 자줏빛이 돈다 ························································· 608. 바위돌꽃

3. 잎은 너비 2mm 이하이고 수에 자색 반다   ···································································609. 좁은잎돌꽃