Caltha palustris vs May blob

Caltha palustris and May blob both are nouns.

Word	Noun	Adjective	Verb	Adverb
Caltha palustris	Yes	No	No	No
May blob	Yes	No	No	No

As nouns, Caltha palustris and May blob are synonyms defined as:

Caltha palustris and May blob: swamp plant of Europe and North America having bright yellow flowers resembling buttercups

Other synonyms of Caltha palustris include cowslip, kingcup, marsh marigold, meadow bright, water dragon.

Caltha palustris (noun)	May blob (noun)
swamp plant of Europe and North America having bright yellow flowers resembling buttercups	swamp plant of Europe and North America having bright yellow flowers resembling buttercups