California buckthorn

from WordNet (r) 3.0 (2006)

California buckthorn
    n 1: evergreen shrub of western United States bearing small red
         or black fruits [syn: {coffeeberry}, {California
         buckthorn}, {California coffee}, {Rhamnus californicus}]

from The Collaborative International Dictionary of English v.0.48

coffeeberry \coffeeberry\ n.
   an evergreen shrub of Western U.S. ({Rhamnus californicus}),
   bearing small red or black fruits; -- called also the
   {California buckthorn}.

   Syn: California buckthorn, California coffee, {Rhamnus
        californicus}.
        [WordNet 1.5]