VI. 포기사초절

1. 자화영은 과포의 길이와 비슷하다. 암술머리는 끝까지 남아있고 꽃차례는 적갈색이 돈다 ··································· 293. 포기사초

1. 자화영은 과포보다 짧다. 암술머리는 일찍 떨어지며 꽃차례는 녹갈섹이다.

2. 식물체는 총생하여 포기를 형성한다   ································································································ 294. 줄사초

2. 식물체는 포기가 성글고 포복경이 자란다  ·····················································································294+. 홍노줄사초