genus Cortaderia ge·nus·cor·taderia uncommon noun 1. tall ornamental grasses of South America and New Zealand and New Guinea: pampas grass SynonymsCortaderiagenus Cortaderia Related words Broader terms monocot genus Parts Gramineae Part of pampas grass WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
