6. 쐐기풀목 Urticales

1. 열매는 시과， 견과， 핵과 또는 다화과이다.

2.  유관이 없으며 열매는 시과， 견과 또는 핵과이다  ····································································느릅나무과 Ulmaceae

2. 유관이 있으며 열매는 보통 다화과이다  ····················································································뽕나무과 Moraceae

1. 열매는 수과이다.

3. 식물체에 향기가 없으며 흔히 가시 같은 털이 있다  ·······································································쐐기풀과 Urticaceae

3. 식물체에 향기가 있으며 가시 겉은 털이 없다 ·············································································삼과 Cannabinaceae