괴불나무속 Lonicera LINN.

1. 가지의 골 속은 비어있다.

2. 덩굴성이다  ································································································································464. 인동

2. 곧추자란다.

3. 꽃자루는 잎자루보다 짧다 ·······································································································465. 괴불나무

3 꽃자루는 잎자루보다 길다.

4. 꽃은 분홍색이며 황색으로 변하지 않는다············································································· 480. 분홍괴불나무

4. 꽃은 백색이며 황색으로 변한다.

5. 겨울눈은 길고 뾰족하며 털이 있고 잎은 길게 뾰족하며 뒷면 옆맥 위에 털이나 선점이 있다 ················ 466. 각시괴불나무

5. 겨울눈은 짧고 끝이 둔하며 잎 뒷면에 털이 밀생한다.

6. 잎은 피침형 또는 타원형 점첨두이고 열매의 포는 선형이며 길이가 1-2cm이다 ···························   467. 물앵도나무

6. 잎은 난형 또타원형 첨두이며 의 포는 피침형으로 1 cm    ·····························468. 섬괴불나무

1. 가지의 골 속은 치밀하다.

7. 열매의 소포는 붙서 열매를 둘러싼다.

8. 열매의 소는 육질며 열매타원형 또는 구형이고 검게 익으종자는 지름 2~3mm이다     ·················469. 댕댕이나무

8. 열매의 소포는 둥고 붉익으종자는 5mm 이다 ············································470. 구슬댕댕이

7. 열매소포는 붙지 않는다.

9. 끝눈는 크며 소포는 없고 열매는 붉게 익는다.

10. 꽃은 1 개씩 달리고 잎에 이 있다.

11. 어린 가지털이 문 있다  ·····················································································471. 털괴불나무

11. 어린 가지거의 없다 ·························································································472. 볼레괴불나무

10. 꽃은 2 씩 달리고 에는 없는 것도 있다.

12. 2 개의 열매는 기부합쳐지꽃은 잎다 먼저 피며 잎에 잔털있다  ·····································473. 올괴불나무

12. 2 개의 매는 대부어 있고 과 같이 핀다.

13. 자루와 꽃자루는 길이기- 비슷하고 거센 털이 있다   ·······················································474. 길마가지나무

13. 잎자루는 자루보다 짧잔털있다 ·········································································475. 숫명다래나무

9. 끝눈은 가지

14. 눈은 난형고 아린은 일찍 떨어지며 열.

15. 어린 가지와 에 선이 있고 잎 뒷면거센 털과 선이 있으며 2개의 열매1/2 이하가 합쳐진다 ···············476. 왕괴불나무

15. 어린 가꽃자루에 털이 .

16. 은 뒷면이 녹색이고 표변에 털이 없다 ·····································································  ·476+. 지리괴나무

16. 잎은 뒷면이 회백색이주맥 양쪽에 털이 밀생한다 ····························································· 481+. 등괴불

14. 울눈장하고 끝며 아린은 오랫다.

17. 꽃자루는 길이 5mm 하이고 잎에 이 없 ······································································477. 청괴불나무

17. 루는 길이가 lcm 이다

18. 뒷면 전체에 털이 밀생하고 꽃은 색이다 ································································478. 흰괴불나무

18. 잎은 맥 상에만 .

19. 검게 익피침형이며 꽃자루는 길3-4cm로서 두 로 나선모가 있다 ·······479. 암괴불나무

19. 는 붉게 익으잎은 난형 또는 넓은 피침형으로서 꽃자루1-2cm이며 이 없다 ···········481. 홀괴불나무