眼子菜 (Potamogeton distinctus A.Bennett.)属眼子菜科 ,俗称水上漂 ,又称水案板 ,在全国各稻作区均有分布 ,为稻田内多年生恶性杂草 ,主要依靠鸡爪芽 (鳞茎 )无性繁殖 ,常年造成危害。为了更好地防治眼子菜对水稻造成的危害 ,作者对眼子菜的生物学特性及在贵州的分布作了初 Potamogeton distinctus A. Bennett. Belongs to the subtropical family, also known as water drift, also known as the water board, are distributed in the rice area throughout the country, for the perennial vicious weeds in paddy fields, mainly rely on chicken claw bud Bulbs) asexual reproduction, perennial cause harm. In order to better control the damage caused by the eye pearl to rice, the author made a preliminary study on the biological characteristics of the eye pearl and its distribution in Guizhou