May blob vs bog plant

May blob and bog plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
May blob	Yes	No	No	No
bog plant	Yes	No	No	No

As nouns, bog plant is a hypernym of May blob; that is, bog plant is a word with a broader meaning than May blob:

May blob: swamp plant of Europe and North America having bright yellow flowers resembling buttercups
bog plant: a semiaquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath

Other hypernyms of May blob include marsh plant, swamp plant.

May blob (noun)	bog plant (noun)
swamp plant of Europe and North America having bright yellow flowers resembling buttercups	a semiaquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath