honey-flower vs protea

honey-flower and protea both are nouns.

Word	Noun	Adjective	Verb	Adverb
honey-flower	Yes	No	No	No
protea	Yes	No	No	No

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

honey-flower: Australian shrub whose flowers yield honey copiously
protea: any tropical African shrub of the genus Protea having alternate rigid leaves and dense colorful flower heads resembling cones

honey-flower (noun)	protea (noun)
Australian shrub whose flowers yield honey copiously	any tropical African shrub of the genus Protea having alternate rigid leaves and dense colorful flower heads resembling cones
erect bushy shrub of eastern Australia having terminal clusters of red flowers yielding much nectar