마가목속 Sorbus LINN.

1. 잎은 복엽이다.

2. 겨울눈은 흰 털로 덮여 있다.

3. 소엽은 13-15 개이다 ············································································································· 846. 당마가목

3. 소엽은 9-15 개이다 ·················································································································· 유럽마가목

2. 겨울눈은 털이 없거나 잔털이 있고 점성이 있으며 잎은 뒷면이 녹색이다.

4. 겨울눈과 어린 가지에 털이 없고 잎에 윤채가 없다 ·············································································847. 마가목

4. 겨울눈과 잔가지에 잔털이 있고 잎에 윤채가 있다···········································································848. 산마가목

1. 잎은 단엽이다···························································································································· 849. 팔배나무