"Tumble grass" refers to a type of plant that grows especially in barren landscapes. It is characterized by its ability to tumble around, effortlessly blowing around in the wind. Although the word is unique, there are a few synonyms that can be used in its place. These synonyms include "scurfy grass," "spear grass," or "tufted hair grass." All three of these words describe the plant's physical appearance and ability to tumble. For those seeking a more poetic word to describe this plant, "prairie grace" can be used. Ultimately, whichever synonym is chosen, all of them capture the beauty of this peculiar grass that tumbles so effortlessly.