Tanacetum vulgare vs tansy

Tanacetum vulgare and tansy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tanacetum vulgare	Yes	No	No	No
tansy	Yes	No	No	No

As nouns, Tanacetum vulgare and tansy are synonyms defined as:

Tanacetum vulgare and tansy: common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally

Other synonyms of Tanacetum vulgare include golden buttons, scented fern.

Tanacetum vulgare (noun)	tansy (noun)
common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally	common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally