Synonyms for Smoke Tree (same or very similar meaning)
WordNet sense 1 (any of several shrubs or shrubby trees of the genus Cotinus):
smoke bushWordNet sense 2 (greyish-green shrub of desert regions of southwestern United States and Mexico having sparse foliage and terminal spikes of bluish violet flowers; locally important as source of a light-colored honey of excellent flavor):
Dalea spinosaFrom the ODE community, based on WordNetadd/edit