southern magnolia vs evergreen magnolia

southern magnolia and evergreen magnolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
southern magnolia	Yes	No	No	No
evergreen magnolia	Yes	No	No	No

As nouns, southern magnolia and evergreen magnolia are synonyms defined as:

southern magnolia and evergreen magnolia: evergreen tree of southern United States having large stiff glossy leaves and huge white sweet-smelling flowers

Other synonyms of southern magnolia include bull bay, large-flowering magnolia, Magnolia grandiflora.

southern magnolia (noun)	evergreen magnolia (noun)
evergreen tree of southern United States having large stiff glossy leaves and huge white sweet-smelling flowers	evergreen tree of southern United States having large stiff glossy leaves and huge white sweet-smelling flowers