Cercis occidentalis vs western redbud

Cercis occidentalis and western redbud both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cercis occidentalis	Yes	No	No	No
western redbud	Yes	No	No	No

As nouns, Cercis occidentalis and western redbud are synonyms defined as:

Cercis occidentalis and western redbud: shrub of western United States having pink or crimson flowers; often forms thickets

Other synonyms of Cercis occidentalis include California redbud.

Cercis occidentalis (noun)	western redbud (noun)
shrub of western United States having pink or crimson flowers; often forms thickets	shrub of western United States having pink or crimson flowers; often forms thickets