ligneous plant lig·neousp·lant uncommon noun 1. a plant having hard lignified tissues or woody parts especially stems Synonymswoody plantligneous plant Related words Broader terms vascular plant Narrower terms bugbanemelilotusaraliacombretumtraveler's treeQueensland grass-cloth plantmilk vetchwild indigo Part of xylemlignum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
