가지속 Solanum LINN.
1. 식물체는 곧게 자란다.
2. 잎은
복엽이다.
3. 식물체에
가시가 없다 ················································································································
281. 감자
3. 식물체에
가시가 있다 ········································································································
284. 노랑바늘가지
2. 잎은
단엽이다
4. 식물체에
가시가 없다.
5. 식물체에
털이 없다 ··································································································
283. 까마중(까마종이)
5 식물체에
털이 있다.
6. 재배식물이다
······················································································································ 282. 가지
6. 야생식물이다.
7. 식물체전체에털이있다 ··································································································· 283++. 털까마중
7. 꽃술에만 털이 있다 ···································································································· 283+. 미국까마중
4. 식물체에 가시가 있다 ······································································································ 283+++. 도깨비가지
1. 식물체는 덩굴성이다.
8. 꽃은 희고 전체에 다세포 털이 있다 ··································································································285. 배풍등
8. 꽃은 담자색이고 거의 털이 없다 ······························································································286. 좁은잎배풍등