Ⅴ. 양지사초절 Sec. Praecoces

1. 수과 끝은 부리 같고 밑은 원반같이 굵어으며 암술머리는 2~3 개이다.

2. 따라는 2 개이며 소수는 성숙하면 흰빛으로 된다 ············································································272. 왕밀사초

2. 암술머리는 3 개이지만 간혹 2 개인 것도 있다.

3. 선부에 꺼진 이 있고 잎에는 털이 있다  ·········································································273. 갯보리사초

3. 과의 능선부에 꺼진 곳이 없다.

4. 은 딱딱하고 소수는 3~6개이다. 측소수는 자웅성이며 짧은 원주형이며 많은 꽃이 달리고 영에는 긴 까락이 있으며 과포에는 맥이 많다 ·························274. 밀사초

4. 잎은 부럽고 소수는 2~3 개이다. 측소수는 암꽃만이 달라고 장타원형 내지 구형 이며 꽃이 고 영은 미첨두이다.

5. 밑부실같이 풀어지고 잎은 너비 2~3mm아며 는 흔2개이고 부은 깊게 2 개로 갈라진다 ································275. 피사초

5. 밑부분의 잎집은 분적으로 풀어지게 되고 잎은 너비 4~8mm 이며 는 흔3 개이고 과포의 리는 크게 2 개로 ························276. 젋은잎피사초

1. 수끝은 주교관, 원추형 또원반형로 수과체와의 경계가 희미하다.

6. 과포푸라스코형이고 위쪽원반형이며 수과와 부속체 사이의 경계가 뚜렷하지  ·······························277. 긴목포사초

6. 과어져서 원추형 또는 주교관 같은 암술밑을 덮고 있.

7. 웅화은 끝이 둔하나 뾰만 2 개로 갈라지 않으며 긴 까이 없다.

8. 웅은 담색이다.

9. 웅가늘고 다음 자소수보다 짧다   ······················································································278. 겨사초

9. 웅소수는 곤봉상이며 다음 자수보다 위쪽에 있다.

10. 생하며 내륙산이다     ······································································································279. 청사초

10. 복지가 있으며 해안산이다 ··························································································· 279+. 갯청사초

8. 웅화영은 황갈색이 거나 적갈색이다.

11. 지하이 길다.

12. 포기는 소생하고 지상의 잎은 녹색이며 자색 또는 흰색이 돌고 다소 섬유상 어진다.

13. 밑부분의 집에 잎새가 있다. 소수짧고 장타원형이며 꽃이 다소 배린다.

14. 인편황갈색이다   ··································································································280. 양지사초

14. 인편은 밤이다    ·······································································································281. 갈색사초

13. 밑부분잎집다소 이 없다. 소수는 긴 원주상이며 이 다소 성린다.

15. 잎새와 잎집은 털이 없다

16. 너비 1.5mm이며 지 않고 포의 는 소수보다 길며 밑부분의 잎집은 희다   ··········282. 선사초

16. 잎은 너비 1mm 이하이며 때로 안으로 말린다 ····································································284. 실사초

15. 밑부분의 잎집은 적자색이다 ······················································································283. 녹빛실사초

12. 포기는 촘촘히 나오고 밑부분의 잎집은 흑갈색이며 섬유가 세로로 분해하여 줄기의 밑을 싼다  ·············· 286. 실청사초

11. 포복지가 없다.

17. 첫째포의 잎집은 짧고 소수는 장타원형이며 적은 꽃이 촘촘히 달린다 ············································· 287. 설령사초

17. 포의 잎집은 길고 소수는 가는 원주상이며 많은 꽃이 다소 성글게 달린다.

18. 웅화영은 가장자리에서 합쳐서 컵같이되고 소수의 높이는 비슷하다 ··········································· 288. 반들사초

18. 웅화영은 비늘같다    ································································································ 290. 가지청사초

7. 웅화영은 끝이 파지거나 2 개로 갈라지고 중앙에서 까락이 돋는다 ··························································291. 애기사초