Bumelia lycioides vs southern buckthorn

Bumelia lycioides and southern buckthorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bumelia lycioides	Yes	No	No	No
southern buckthorn	Yes	No	No	No

As nouns, Bumelia lycioides and southern buckthorn are synonyms defined as:

Bumelia lycioides and southern buckthorn: shrubby thorny deciduous tree of southeastern United States with white flowers and small black drupaceous fruit

Other synonyms of Bumelia lycioides include mock orange, shittim, shittimwood.

Bumelia lycioides (noun)	southern buckthorn (noun)
shrubby thorny deciduous tree of southeastern United States with white flowers and small black drupaceous fruit	shrubby thorny deciduous tree of southeastern United States with white flowers and small black drupaceous fruit