산형과 Umbelliferae

1. 꽃차례는 뿌리에서 자라며 불규칙한 단일 산형화서이다.

2. 잎은 단엽이다.

3. 분과에 5 맥이 있다    ··················································································································피막이풀속

3. 분과에 7~9 맥이 있다   ················································································································1322. 병풀

2. 잎은 복엽이다.

4. 분과에 가시 또는 돌기가 있다   ·········································································································참반디속

4. 분과는 밋밋하다 ·················································································································1323. 파드득나물

1. 꽃차례는 줄기 끝에 달라며 복산형화서이다.

5. 열매는 좌우로 다소 편평하며 분과는 단면이 둥글다

6. 분과에 가시가 밀생한다.

7. 총포는 갈라지지 않았다.

8. 소과경이 없거나 짧다  ·········································································································1324. 사상자

8. 소과경이 뚜렷하다  ··········································································································1325. 개사상자

7. 총포는 잎같이 생기고 갈라진다  ··································································································1326. 당근

6. 분과에 가시가 없다.

9. 분과는 밑부분이 가늘어져서 소과경으로 흐른다  ·········································································1327. 긴사상자

9. 분과는 밑으로 좁아지지 않는다.

10. 꽃은 황색이고 잎은 단엽으로서 가장자리가 밋밋하다 ··········································································· 시호속

10. 꽃은 백색 또는 자주색이고 잎은 거의 복엽이거나 갈라진다.

11. 분과는 길이 5~8mm이고 원주형이며 능선이 뚜렷하지 않다.

12. 분과에 작은 돌기 또는 털이 있다 ······················································································· 1328. 전호

12. 분과는 밋밋하다 ······································································································ 1329. 무산상자

11. 분과는 길이 5mm 이하이고 장타원형이며 능선이 뚜렷하다.

13. 소산화서에는 꽃이 1~3 개 달린다 ·············································································· 1330. 반디미나리

13. 소산화서에 꽃이 10 개 이상 달린다.

14. 암술대밑은 원추형이거나 거의 둥글며 높이와 너비가 거의 같거나 높다.

15. 꽃받침은 톱니가 뚜렷하다

16. 분과는 맥이 가늘며 유선이 많다 ··················································································· 참나물속

16. 분과는 맥이 굵으며 능선사이에 유선이 1 개 있다 ·················································· 1331. 서울개발나물

15. 꽃받침은 톱니가 희미하다.

17. 분과는 단면이 거의 둥글며 능선이 굵다 ····································································· 1332. 미나리

17. 분과는 단면이 5각형이며 능선이 가늘다 ···································································· 1333. 왜방풍

14. 암술대밑은 편평하며 높이가 너비보다 짧다.

18. 잎은 1 회 우상복엽이다 ····························································································· 개발나물속

18. 잎은 2~4회 우상복엽이다.

19. 습지에서 자라며 소엽이 넓다 ··············································································· 1334. 독미나리

19. 육상 또는 바위틈에서 자란다.

20. 열매에 털이 있으며 바위틈에서 자란다 ·································································· 1335. 돌방풍

20. 열매에 털이 없으며 육상에서 자란다 ········································································ 1336. 고수

5. 열매는 전후로 편평하며 분과는 단면이 반원형이거나 편평하다.

21. 분과는 단면이 반원형 또는 반월형이며 가장자리 능선이 날개처럼 넓어지지 않는다.

22. 암술대 밑은 원추형이다.

23. 내외과피는 엉성하게 닿으며 능선은 예리한 날개로 되어있다 ············································· 1337. 누룩치(왜우산풀)

23. 내외과피는 밀접하게 닿았고 능선은 둔하다.

24. 분과는 길이 3mm 정도이다 ······································································································ 천궁속

24. 분과는 길이 3~5mm 이다 ·································································································· 1338. 회향

22. 암술대 밑은 편평하거나 평탄하다.

25. 분과의 능선은 굵으며 열매에 긴 털이 있다 ··············································································· 1339. 갯방풍

25. 분과의 능선은 실같이 가늘며 열매에 작은 돌기 또는 짧은 털이 있다.

26. 분과에 돌기 같은 털이 있다 ························································································· 1340. 털기름나물

26. 분과에 짧은 털이 있다 ······································································································· 1341. 방풍

21. 분과는 단면이 편평하며 가장자리 능선이 날개처럼 넓다.

27. 분과의 가장자리 능선과 뒷면 능선의 너비는 거의 비슷하다.

28. 분과의 능선은 가늘고 딱딱하지 않으며 속이 차 있다   ··································································1368. 왜당귀

28. 분과의 능선은 굵고 밑부분이 부풀었으며 안쪽에 공간이 있다   ····················································1342. 부전바디

27. 분과의 가장자리 능선이 뒷면의 능선보다 넓다.

29. 유선은 분과의 기부에 닿지 못하며 꽃잎의 크기는 다르다 ·····························································1343. 어수리

29. 유선은 분과를 전부 통하며 꽃잎의 크기는 비슷하다.

30. 분과의 뒷면 능선은 날개같이 넓다.

31. 분과의 날개는 두꺼우며 꽃받침잎은 현저하다   ····································································1344. 섬바디

31. 분과의 날개는 앓으며 꽃받침잎은 희미하다  ·······································································1345. 산천궁

30. 분과의 뒷면 능선은 맥같이 좁다.

32. 과피는 1 층 두께로 되었으며 날개는 얇고 꽃받침 잎은 뚜렷하다   ·····················································강활속

32. 과피는 여러 층으로 되었으며 날개도 두껍고 꽃받침잎은 뚜렷하지 않다.

             33. 분과 가장자리의 능선은 얇고 벌어진다  ······················································································ 당귀속

             33. 분과 가장자리의 능선은 두꺼우며 벌어지지 않는다     ·································································기름나물속

기름당귀속 Ligusticum

1. 잎의 열편은 도란형 내지 난상원형이고 소산경은 15-20 개이며 분과는길이 8-11mm 이다 ······························· 1367. 기름당귀

1. 잎의 소열편은 피침형이고 소산경은 20-40 개이며 분과는 길이 4-5mm 이다  ················································· 1368. 왜당귀