딸기속 Rubus LINN.

1. 단엽이다.

2. 줄기는 덩굴성이다 ·················································································································753. 겨울딸기

2. 줄기는 곧추선다.

3. 초관성이다 ·················································································································· 765+. 장지딸기

3. 목본성이다.

4. 과지의 잎은 결각이 없다 ··································································································· 754. 수리딸기

4. 과지의 잎에 결각이 있다.

5. 꽃은 총상화서에 달린다.

6. 원줄기에 가시가 있다 ···································································································· 755. 산딸기

6. 가시가 없다 ···········································································································755+. 섬산딸기

5. 꽃은 1 개씩 달린다.

7. 가시가 없다.

8. 어린 가지, 잎자루 및 꽃자루에 선모가 있다 ···································································· 756+. 거문딸기

8. 선모가 없다   ·············································································································756. 섬딸기

7. 줄기에 가시가 있다.

9 잎과 꽃자루에 털이 있고 꽃자루는 길이 5-10mm 이다 ·························································· 757. 단풍딸기

9. 잎은 표면에 털이 없고 꽃자루는 길이 1cm로서 털이 밀생한다 ················································· 758. 맥도딸기

1. 복엽이다

10. 산방화서 또는 총상화서이다.

11. 꽃은 보통 총상화서에 달리고 소엽은 3 개이며 줄기와 잎자루에 선모가 있다 ···· 759. 곰딸기

11. 꽃은 보통 산방화서 또는 원추화서에 달리고 간혹 총상화서에 달린다.

12. 소엽은 3 개이다.

13. 줄기와 잎자루에 선모가 없다 ····························································································· 760. 멍석딸기

13. 줄기와 잎자루에 선모가 밀생한다.

14. 잎은 뒷면에 흰 털이 밀생한다 ························································································ 761. 멍덕딸기

14. 잎은 뒷면에 털이 없거나 맥 상에 있으나 흰빛이 아니다.

15. 열매는 둥글고 적색이다 ····························································································761 +. 나무딸기

15. 열매는 길고 황색이다 ································································································762. 거지딸기

12. 소엽은 5개(간혹 7개)이다.

16. 줄기는 곧추서고 가지는 밑으로 처진다·············································································· 763. 복분자딸기

16. 줄기는 옆으로 벋는다 ·································································································· 764. 가시복분자

10. 꽃은 보통 1 개씩 달린다.

17. 초본성 또는 반관목이다.

18. 소엽은 3 개이고 초본성이다 ································································································ 765. 함경딸기

18. 소엽은 3~7 개(보통 5 개)이고 반관목이다

19. 소엽은 3~7 개로서 우상복엽이다 ·························································································· 766. 장딸기

19. 소엽은 5 개로서 장상복엽이다 ··························································································· 767. 오엽딸기

17. 목본식물이다

20. 줄기와 잎자루에 선모가 밀생한다 ·························································································· 768. 검은딸기

20. 선모가 없다.

21. 줄기가 서고 꽃은 새가지에 달리며 꽃자루와 꽃받침에 털이 없다 ··················································· 769. 가시딸기

21. 줄기가 앞으로 벋으며 꽃은 새가지 끝에 달리고 꽃자루와 꽃받침에 털이 있다 ····································· 770.  줄딸기