plant life vs clustered

plant life is a noun but clustered is not a noun.

Word	Noun	Adjective	Verb	Adverb
plant life	Yes	No	No	No
clustered	No	Yes	No	No

plant life (noun)	clustered (noun)
(botany) a living organism lacking the power of locomotion

plant life (adjective)	clustered (adjective)
	clustered together but not coherent
	growing close together but not in dense mats