Synonyms for White Poplar (same or very similar meaning)
WordNet sense 1 (a poplar that is widely cultivated in the United States; has white bark and leaves with whitish undersurfaces):
abele, aspen poplar, Populus alba, silver-leaved poplar, white aspenWordNet sense 2 (light easily worked wood of a tulip tree; used for furniture and veneer):
tulipwood, whitewood, yellow poplar, true tulipwoodFrom the ODE community, based on WordNetadd/edit