anemone vs sea anemone

anemone and sea anemone both are nouns.

Word	Noun	Adjective	Verb	Adverb
anemone	Yes	No	No	No
sea anemone	Yes	No	No	No

As nouns, anemone and sea anemone are synonyms defined as:

anemone and sea anemone: marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton

anemone (noun)	sea anemone (noun)
marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton	marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton
any woodland plant of the genus Anemone grown for its beautiful flowers and whorls of dissected leaves