witch grass witchg·rass uncommon noun 1. North American grass with slender brushy panicles; often a weed on cultivated land Synonymswitchgrasswitch grassold witchgrassold witch grasstumble grassPanicum capillare 2. European grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed Synonymsdog grasscouch grassquackgrassquack grassquick grasswitch grasswitchgrassAgropyron repens Related words Broader terms wheatgrasspanic grass WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
