thrift vs suffrutex

thrift and suffrutex both are nouns.

Word	Noun	Adjective	Verb	Adverb
thrift	Yes	No	No	No
suffrutex	Yes	No	No	No

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

thrift: any of numerous sun-loving low-growing evergreens of the genus Armeria having round heads of pink or white flowers
suffrutex: low-growing woody shrub or perennial with woody base

Other hypernyms of thrift include subshrub.

thrift (noun)	suffrutex (noun)
extreme care in spending money; reluctance to spend money unnecessarily	low-growing woody shrub or perennial with woody base
any of numerous sun-loving low-growing evergreens of the genus Armeria having round heads of pink or white flowers