arborescent

from WordNet (r) 3.0 (2006)

arborescent
    adj 1: resembling a tree in form and branching structure;
           "arborescent coral found off the coast of Bermuda";
           "dendriform sponges" [syn: {arboreal}, {arboreous},
           {arborescent}, {arboresque}, {arboriform}, {dendriform},
           {dendroid}, {dendroidal}, {treelike}, {tree-shaped}]

from The Collaborative International Dictionary of English v.0.48

Arborescent \Ar`bo*res"cent\, a. [L. arborescens, p. pr. of
   arborescere to become a tree, fr. arbor tree.]
   Resembling a tree; becoming woody in stalk; dendritic; having
   crystallizations disposed like the branches and twigs of a
   tree. "Arborescent hollyhocks." --Evelyn.
   [1913 Webster]

[email protected]