 In particularly wetter wetlands that retain water through the summer, the common plant is hard-stem bulrush, along with soft-stem bulrush and common threesquare in slightly drier regions of the wetlands.The vegetation in permanently flooded wetlands is more aquatic; duckweeds, pondweeds, aquatic buttercups, and aquatic smartweeds are some of the most common.In drier wetlands of the PPR, the vegetation varies from spikerush, which is found in the wetter areas of the wetland, to foxtail barley and wheatgrass on the outer edges of the wetland.