Under "Kansas," there is no ecoregion report PDF yet but more details are contained in the 4 map PDFs. https://www.plantmaps.com/ Entering a Zip code reveals which of the level IV ecoregions it falls under. Cross Timbers Historic Images Project–Texas Oklahoma Digital Maps: Digital Collections of Oklahoma and Indian Territory Grasslands of the United States Temperate grasslands, savannas, and shrublands in the United States Ecoregions of the United States Plains of the United States South Central United States Geographic regions of Oklahoma Regions of Kansas Regions of Texas Grasslands of Kansas Grasslands of Oklahoma Grasslands of Texas