flamingo flower vs tail-flower

flamingo flower and tail-flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
flamingo flower	Yes	No	No	No
tail-flower	Yes	No	No	No

As nouns, tail-flower is a hypernym of flamingo flower; that is, tail-flower is a word with a broader meaning than flamingo flower:

flamingo flower: commonly cultivated anthurium having bright scarlet spathe and spadix
tail-flower: any of various tropical American plants cultivated for their showy foliage and flowers

Other hypernyms of flamingo flower include anthurium, tailflower.

flamingo flower (noun)	tail-flower (noun)
commonly cultivated anthurium having bright scarlet spathe and spadix	any of various tropical American plants cultivated for their showy foliage and flowers