Centaurea americana and Centaury

Centaurea americana noun - Annual of southwestern United States cultivated for its purple flower heads and its bracts that resemble small baskets.

Centaury and Centaurea americana are semantically related. In some cases you can use "Centaury" instead a noun phrase "Centaurea americana".

Centaury noun - Any plant of the genus Centaurea.

Centaurea americana and centaury are semantically related. Sometimes you can replace phrase "Centaurea americana" with "Centaury", this terms are similar.