From scrub + grass. <span class="searchmatch">scrubgrass</span> (uncountable) A plant, the scouring rush....
horsetail (Equisetum hyemale), formerly used for scouring and polishing. <span class="searchmatch">scrubgrass</span> shavegrass Dutch rush Equisetum Hippochaete horsetail puzzlegrass...
grass saltgrass sawgrass saw-grass, saw grass scorpion grass scratchgrass <span class="searchmatch">scrubgrass</span> scurvy-grass, scurvy grass scutch grass sea couch grass seagrass sedge...