order Sapindales vs plant order

order Sapindales and plant order both are nouns.

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

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

order Sapindales: an order of dicotyledonous plants, containing the families Anacardiaceae, Biebersteiniaceae, Burseraceae, Kirkiaceae, Meliaceae, Nitrariaceae, Rutaceae, Sapindaceae, and Simaroubaceae (Sapindales)
plant order: the order of plants

order Sapindales (noun)	plant order (noun)
an order of dicotyledonous plants, containing the families Anacardiaceae, Biebersteiniaceae, Burseraceae, Kirkiaceae, Meliaceae, Nitrariaceae, Rutaceae, Sapindaceae, and Simaroubaceae (Sapindales)	the order of plants