Primulales vs plant order

Primulales and plant order both are nouns.

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

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

Primulales: Primulaceae, Theophrastaceae, Myrsinaceae, and (in some classifications) Plumbaginaceae
plant order: the order of plants

Primulales (noun)	plant order (noun)
Primulaceae, Theophrastaceae, Myrsinaceae, and (in some classifications) Plumbaginaceae	the order of plants