cymling vs summer squash vine

cymling and summer squash vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
cymling	Yes	No	No	No
summer squash vine	Yes	No	No	No

As nouns, summer squash vine is a hypernym of cymling; that is, summer squash vine is a word with a broader meaning than cymling:

cymling: squash plant having flattened round fruit with a scalloped edge; usually greenish white
summer squash vine: any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden

Other hypernyms of cymling include Cucurbita pepo melopepo, summer squash.

cymling (noun)	summer squash vine (noun)
squash plant having flattened round fruit with a scalloped edge; usually greenish white	any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden