sea pea vs wild pea

sea pea and wild pea both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea pea	Yes	No	No	No
wild pea	Yes	No	No	No

As nouns, wild pea is a hypernym of sea pea; that is, wild pea is a word with a broader meaning than sea pea:

sea pea: wild pea of seashores of north temperate zone having tough roots and purple flowers and useful as a sand binder
wild pea: any of various plants of the family Leguminosae that usually grow like vines

sea pea (noun)	wild pea (noun)
wild pea of seashores of north temperate zone having tough roots and purple flowers and useful as a sand binder	any of various plants of the family Leguminosae that usually grow like vines