Alismales vs order Naiadales

Alismales and order Naiadales both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alismales	Yes	No	No	No
order Naiadales	Yes	No	No	No

As nouns, Alismales and order Naiadales are synonyms defined as:

Alismales and order Naiadales: an order of aquatic monocotyledonous herbaceous plants

Other synonyms of Alismales include Naiadales, order Alismales.

Alismales (noun)	order Naiadales (noun)
an order of aquatic monocotyledonous herbaceous plants	an order of aquatic monocotyledonous herbaceous plants