고양이수염속 Rhynchospora VAHL

1. 꽃차례는 둥글고 끝에 1 개가 달린다        ··················································································383. 붉은골풀아재비

1. 꽃차례는 산방상이다.

2. 소수는 갈색 또는 짙은갈색이며 열매 밑의 바늘 같은 화피 열편은 6 개 이하이다.

3. 소수는 길이 7 -9 mm 이다.

4. 화피 열편은 열매 길이의 2-3 배이고 소수의 인편은 디소 윤채가 없다      ·········································384. 고양이수염

4. 화피 열편은 열매 길이의 3-4 배이고 소수의 인편은 윤채가 난다     ··············································385. 큰고양이수염

3. 소수는 길이 5-6mm이다.

5. 줄기는 가늘지만 실같지 않다      ·························································································386. 좀괭이수염

5. 소수는 길이 4mm 이고 실같이 가는 식물이다    ·······································································387. 골풀아재비

2. 소수는 희고 화피 열편은 9-15 개이다    ···················································································388. 흰고양이수염