tuckahoe vs arrow arum

tuckahoe and arrow arum both are nouns.

Word	Noun	Adjective	Verb	Adverb
tuckahoe	Yes	No	No	No
arrow arum	Yes	No	No	No

As nouns, arrow arum is a hypernym of tuckahoe; that is, arrow arum is a word with a broader meaning than tuckahoe:

tuckahoe: perennial herb of the eastern United States having arrowhead-shaped leaves and an elongate pointed spathe and green berries
arrow arum: an aquatic plant of the genus Peltandra; North America

tuckahoe (noun)	arrow arum (noun)
perennial herb of the eastern United States having arrowhead-shaped leaves and an elongate pointed spathe and green berries	an aquatic plant of the genus Peltandra; North America