burr marigold vs suffrutex

burr marigold and suffrutex both are nouns.

Word	Noun	Adjective	Verb	Adverb
burr marigold	Yes	No	No	No
suffrutex	Yes	No	No	No

As nouns, suffrutex is a hypernym of burr marigold; that is, suffrutex is a word with a broader meaning than burr marigold:

burr marigold: any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing
suffrutex: low-growing woody shrub or perennial with woody base

Other hypernyms of burr marigold include subshrub.

burr marigold (noun)	suffrutex (noun)
any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing	low-growing woody shrub or perennial with woody base