말발도리속 Deutzia THUNB.

1. 꽃은 1-3 개씩 달리거나 원추화서 또는 총상화서에 달리고 꽃잎은 봉오리 때 서로 겹쳐지지 않는다.

2. 꽃은 총상화서 또는 원추상 화서에 달린다.

3. 총상화서이다 ··························································································································659. 빈도리

3. 원추화서이다.

4. 잎은 1O~15 개로 갈라진 털이 양면에 있다  ·········································································661. 둥근잎말발도리

4. 잎은 4~6 개로 갈라진 털이 표면에 있고 뒷면에는 없다.

5. 털은 5~8 개로 갈라지고 꽃잎은 길이 1cm 이다  ···································································660. 애기말발도리

5. 털은 3~5 개로 갈라지고 꽃잎은 길이 4~5mm 이다  ·······························································664. 꼬리말발도리

2. 꽃은 1 마디에 1~3 개씩 달린다.

6. 꽃은 새가지에 달린다 ·········································································································665. 바위말발도리

6. 꽃은 묵은 가지에 달린다  ····································································································666. 매화말발도리

1. 꽃은 산방화서에 달리고 꽃잎은 꽃봉오리 안에서 서로 포개져 있다.

7. 잎에 성모가 있다  ·····················································································································662. 말발도리

7. 잎의 뒷면에 털이 없다  ··················································································································663. 물참대