The Collaborative International Dictionary of English v.0.48:

Ramous \Ra"mous\ (r[=a]"m[u^]s), a.
   Ramose.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ramous
    adj 1: having branches [syn: branched, branching, ramose,
           ramous, ramate]

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "ramous":
   V-shaped, Y-shaped, arboreal, arborescent, arboriform, biforked,
   bifurcate, bifurcated, bowery, branched, branching, branchlike,
   branchy, crotched, dendriform, dendritic, foliaged, foliate,
   foliated, foliose, forked, forking, forklike, furcate, leafy,
   leaved, leavy, pronged, ramate, ramified, ramose, tree-shaped,
   treelike, tridentlike, trifurcate, trifurcated, twiggy