spring cleavers vs catchweed

spring cleavers and catchweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
spring cleavers	Yes	No	No	No
catchweed	Yes	No	No	No

As nouns, spring cleavers and catchweed are synonyms defined as:

spring cleavers and catchweed: annual having the stem beset with curved prickles; North America and Europe and Asia

Other synonyms of spring cleavers include cleavers, clivers, Galium aparine, goose grass.

spring cleavers (noun)	catchweed (noun)
annual having the stem beset with curved prickles; North America and Europe and Asia	annual having the stem beset with curved prickles; North America and Europe and Asia