Campanulales vs plant order

Campanulales and plant order both are nouns.

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

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

Campanulales: an order of plants of the subclass Asteridae including: Campanulaceae, Lobeliaceae, Cucurbitaceae, Goodeniaceae, Compositae
plant order: the order of plants

Campanulales (noun)	plant order (noun)
an order of plants of the subclass Asteridae including: Campanulaceae, Lobeliaceae, Cucurbitaceae, Goodeniaceae, Compositae	the order of plants