Cnidoscolus urens vs tread-softly

Cnidoscolus urens and tread-softly both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cnidoscolus urens	Yes	No	No	No
tread-softly	Yes	No	No	No

As nouns, Cnidoscolus urens and tread-softly are synonyms defined as:

Other synonyms of Cnidoscolus urens include devil nettle, Jatropha stimulosus, Jatropha urens, pica-pica, spurge nettle.

Cnidoscolus urens (noun)	tread-softly (noun)
a stinging herb of tropical America	a stinging herb of tropical America