Anemone sylvestris vs anemone

Anemone sylvestris and anemone both are nouns.

Word	Noun	Adjective	Verb	Adverb
Anemone sylvestris	Yes	No	No	No
anemone	Yes	No	No	No

As nouns, anemone is a hypernym of Anemone sylvestris; that is, anemone is a word with a broader meaning than Anemone sylvestris:

Anemone sylvestris: Eurasian herb with solitary nodding fragrant white flowers
anemone: any woodland plant of the genus Anemone grown for its beautiful flowers and whorls of dissected leaves

Other hypernyms of Anemone sylvestris include windflower.

Anemone sylvestris (noun)	anemone (noun)
Eurasian herb with solitary nodding fragrant white flowers	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