The Collaborative International Dictionary of English v.0.48:

coralberry \coralberry\ n.
   1. a North American deciduous shrub (Symphoricarpos
      orbiculatus) cultivated for its abundant clusters of
      coral-red berrylike fruits.

   Syn: Indian currant, Symphoricarpos orbiculatus.
        [WordNet 1.5]

   2. shrub (Ardisia crenata) with coral-red berries; it is
      found from Japan to northern India.

   Syn: spiceberry, Ardisia crenata.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Symphoricarpos orbiculatus
    n 1: North American deciduous shrub cultivated for it abundant
         clusters of coral-red berrylike fruits [syn: coralberry,
         Indian currant, Symphoricarpos orbiculatus]