Of the 3,000 species of wild plants in Oklahoma, Kansas and Nebraska, in the heart of the US heartland, only two of every ten are grasses, and in some prairies just one or two of these can account for 80-90 percent of the ground cover. It is these major wild grasses, the native and the naturalised, that this field guide covers, as well as some not found in such large numbers but nonetheless widespread and easily noticed.
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