cat's-claw vs Pithecellobium

cat's-claw and Pithecellobium both are nouns.

Word	Noun	Adjective	Verb	Adverb
cat's-claw	Yes	No	No	No
Pithecellobium	Yes	No	No	No

cat's-claw (noun)	Pithecellobium (noun)
erect shrub with small if any spines having racemes of white to yellow flowers followed by curved pointed pods and black shiny seeds; West Indies and Florida	thorny shrubs and trees of tropical and subtropical America and Asia