shad tree

from The Collaborative International Dictionary of English v.0.48

Juneberry \June"ber`ry\, n. (Bot.)
   (a) The small applelike berry of American trees of genus
       {Amelanchier}; -- also called {service berry}.
   (b) The shrub or tree which bears this fruit; -- also called
       {shad bush}, and {shad tree}.
       [1913 Webster]