(a.) Having three branches or forks; trichotomous.

V-shaped Y-shaped arborary arboreous arborescent arboresque arborical arboriform biforked bifurcate bifurcated branched branching branchlike bushlike bushy citrous coniferous crotched deciduous dendriform dendritic dendroid evergreen forked forking forklike furcate hardwood nondeciduous piny pronged ramous scrubbly scrubby scrublike shrubby shrublike softwood tree-shaped treelike tridentlike trifurcate trifurcated