英语语法分析

The most weed species were Gramineae, Cyperaceae, Compositae, Scrophulariaceae, Alismataceae and Lythraceae.

杂草种类较多的科依次为禾本科、莎草科、菊科、玄参科、泽泻科、千屈菜科等。

The families including the most weed species were Gramineae, Cyperaceae, Compositae, Scrophulariaceae, Alismataceae and Lythraceae.

其中，杂草种类较多的科依次为禾本科、莎草科、菊科、玄参科、泽泻科、千屈菜科等。

Mainly distributed in subtropical and temperate East Asia, the flora of Alismataceae in southwestern Hubei has a very close relationship With the same flora in Jiangxi, Jiangsu and Japan.

鄂西南泽泻科植物主要属东亚亚热带温带分布，该科区系与江西、江苏和日本的同类区系关系十分密切。