althaea vs hollyhock

althaea and hollyhock both are nouns.

Word	Noun	Adjective	Verb	Adverb
althaea	Yes	No	No	No
hollyhock	Yes	No	No	No

As nouns, althaea and hollyhock are synonyms defined as:

althaea and hollyhock: any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea

Other synonyms of althaea include althea.

althaea (noun)	hollyhock (noun)
any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea	any of various tall plants of the genus Alcea; native to the Middle East but widely naturalized and cultivated for its very large variously colored flowers
	any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea