낚시돌풀속 Hedyotis LINN.

1. 잎은 많은 세포로 된 털이 있고 너비 1-2cm 이다    ···············································································400. 탐라풀

1. 잎은 털이 없고 너비 1cm 이하이다.

2. 잎은 초질이며 너비 1.5-3mm 이다  ·······························································································398. 백운풀

2. 잎은 육질이며 너비 1cm 내외이다 ······························································································399. 낚시돌풀