devil's walking stick vs American angelica tree

devil's walking stick and American angelica tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
devil's walking stick	Yes	No	No	No
American angelica tree	Yes	No	No	No

As nouns, devil's walking stick and American angelica tree are synonyms defined as:

devil's walking stick and American angelica tree: small deciduous clump-forming tree or shrub of eastern United States

Other synonyms of devil's walking stick include Aralia spinosa, Hercules'-club.

devil's walking stick (noun)	American angelica tree (noun)
small deciduous clump-forming tree or shrub of eastern United States	small deciduous clump-forming tree or shrub of eastern United States