17. 무환자나무목 Sapindales

1. 꽃부리는 규칙적이다.

2. 꽃부리 열편이 없다.

 3. 작은 관목으로서 수술은 2~3 개이다 ··················································································시로미과 Empetraceae

 3. 목본식물로서 수술은 4 개~다수이다 ·······················································································회양목과 Buxaceae

2. 꽃부리 열편이 있다.

  4. 식물체에 수지구가 있다 ······························································································옻나무과 Anacardiaceae

  4. 식물체에 수지구가 없다.

    5. 잎은 호생한다.

      6. 잎은 흔히 상록성이다 ···························································································감탕나무과 Aquifoliaceae

      6. 잎은 흔히 낙엽성이다 ·····························································································노박덩굴과 Celastraceae

    5. 잎은 단엽이다.

      7. 열매는 삭과 또는 장과이다 ········································································································노박덩굴과

      7. 열매는 시과이다 ······································································································단풍나무과 Aceraceae

    5. 잎은 복엽이다.

      8. 열매는 삭과이다 ·································································································고추나무과 Staphyleaceae

      8. 열매는 시과이다 ··················································································································· 단풍나무과

1. 꽃부리 열편은 불규칙적이다.

9. 목본식물이다

  10. 잎은 대생한다 ····································································································칠엽수과 Hippocastanaceae

  10. 잎은 보통 호생한다

    11. 수술은 보통 8개이고 심피는 2~3개이다 ······································································무환자나무과 Sapindaceae

    11. 수술은 4~5 개 또는 10 개이고 심피는 4~5 개이다 ···························································나도밤나무과 Sabiaceae

9. 초본식물이다 ·············································································································봉선화과 Balsaminaceae