coralbells vs alumroot

coralbells and alumroot both are nouns.

Word	Noun	Adjective	Verb	Adverb
coralbells	Yes	No	No	No
alumroot	Yes	No	No	No

As nouns, alumroot is a hypernym of coralbells; that is, alumroot is a word with a broader meaning than coralbells:

coralbells: perennial plant of the western United States having bright red flowers in feathery spikes; used as an ornamental
alumroot: any of several herbs of the genus Heuchera

Other hypernyms of coralbells include alumbloom.

coralbells (noun)	alumroot (noun)
perennial plant of the western United States having bright red flowers in feathery spikes; used as an ornamental	any of several herbs of the genus Heuchera