Ericales vs plant order

Ericales and plant order both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ericales	Yes	No	No	No
plant order	Yes	No	No	No

As nouns, plant order is a hypernym of Ericales; that is, plant order is a word with a broader meaning than Ericales:

Ericales: Ericaceae, Clethraceae, Diapensiaceae, Epacridaceae, Lennoaceae, Pyrolaceae, Monotropaceae
plant order: the order of plants

Ericales (noun)	plant order (noun)
Ericaceae, Clethraceae, Diapensiaceae, Epacridaceae, Lennoaceae, Pyrolaceae, Monotropaceae	the order of plants