California dandelion vs capeweed

California dandelion and capeweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
California dandelion	Yes	No	No	No
capeweed	Yes	No	No	No

As nouns, California dandelion and capeweed are synonyms defined as:

California dandelion and capeweed: European weed widely naturalized in North America having yellow flower heads and leaves resembling a cat's ears

Other synonyms of California dandelion include cat's-ear, gosmore, Hypochaeris radicata.

California dandelion (noun)	capeweed (noun)
European weed widely naturalized in North America having yellow flower heads and leaves resembling a cat's ears	European weed widely naturalized in North America having yellow flower heads and leaves resembling a cat's ears