老祖宗住在密士失比河塔斯卡洛拉(译者注:这个字的英文本名原是加拿大的一种土人族名)是过去在北美洲大陆的北部一带生长的唯一的一种禾本科的有用植物。广大的淡绿色的塔斯卡洛拉——或者依照我们这里引用的称呼叫它加拿大稻——的草丛广布在加拿大南半部和美国北部的湖沼和河流沿岸,尤其是沿着密士失比河(R.Mississ pi)的流域, The ancestors lived in the Mississippi River Tuscaloosa is the only species ever to grow in the northern part of the North American continent Undergraduate useful plants. The vast, pale-green Tuscaloosa - or grass that calls it Canadian rice - as we have quoted here - is spread over lakes and rivers in the southern half of Canada and the northern United States, especially along Mississippi River basin of R. Mississ pi,