western redbud vs Cercis occidentalis

western redbud and Cercis occidentalis both are nouns.

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

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

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

Other synonyms of western redbud include California redbud.

western redbud (noun)	Cercis occidentalis (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