때죽나무과 Styracaceae

1. 꽃은 총상으로 달리고 씨방은 상위이다   ······························································································· 때죽나무속

1. 꽃은 복총상화서에 달리고 씨방은 하위 또는 반하위이다    ····································································· 77. 나래쪽동백

때죽나무속 Styrax LINN.

1. 잎자루 기부 안에 겨울눈이 없다  ······································································································ 76. 때죽나무

1. 잎자루 기부 안에 겨울눈이 들어있다.

2. 잎의 뒷면은 분백색이며 성모가 밀생한다 ························································································ 74. 쪽동백나무

2. 잎의 뒷면은 담갈색이며 황갈색 성모가 있다 ·················································································· 75. 좀쪽동백나무