dendroid vs dendroidal

dendroid and dendroidal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dendroid	No	Yes	No	No
dendroidal	No	Yes	No	No

As adjectives, dendroid and dendroidal are synonyms defined as:

dendroid and dendroidal: resembling a tree in form and branching structure

Other synonyms of dendroid include arboreal, arboreous, arborescent, arboresque, arboriform, dendriform, tree-shaped, treelike.

dendroid (adjective)	dendroidal (adjective)
resembling a tree in form and branching structure	resembling a tree in form and branching structure