tansy leaf aster tan·sy·lea·faster uncommon noun 1. wild aster with fernlike leaves and flower heads with very narrow bright purple rays; Alberta to Texas and Mexico Synonymstahoka daisytansy leaf asterMachaeranthera tanacetifolia Related words Broader terms wildflower Parts Machaeranthera WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
