须芒草：用于控制水土流失的一种草。
护林员的一只手抓到一卷须芒草，另一只手在那个金属板的较坚固的一头。
The ranger's hands found purchase, one on a hank of broomsedge, the other on the metal's firmer edging.
当欧洲人来到这个区域以后，他们就开始开荒耕作，不大量的须芒草给清理掉，用以种植庄稼。
When the Europeans moved into the region and started farming and clearing huge tracts of acreage these grasses were replaced with other crops.
须芒草北美洲须芒草属，孔颖草属和裂稃草属的几种主要的草之一，其中一些为重要的大平原草。
Any of several chiefly North American grasses of the genera Andropogon, Bothriochloa, and Schizachyrium, some of which are important prairie grasses.
在过去的几十年里，由于气候的改变。须芒草的自然生长区域也有了改变，他的适应性也相对的扩大或者缩小了了生长的区域范围。
Over the decades climate changes shifted the natural growing range and the grasses adapted by extending or limiting their area of growth.
在过去的几十年里，由于气候的改变。须芒草的自然生长区域也有了改变，他的适应性也相对的扩大或者缩小了了生长的区域范围。
Over the decades climate changes shifted the natural growing range and the grasses adapted by extending or limiting their area of growth.
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