Gnetales vs plant order

Gnetales and plant order both are nouns.

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

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

Gnetales: chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiosperms
plant order: the order of plants

Gnetales (noun)	plant order (noun)
chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiosperms	the order of plants