Common hops and Hops

Common hops noun - European twining plant whose flowers are used chiefly to flavor malt liquors; cultivated in America.

Hops and common hops are semantically related. In some cases you can use "Hops" instead a noun phrase "Common hops".

Hops noun - Twining perennials having cordate leaves and flowers arranged in conelike spikes; the dried flowers of this plant are used in brewing to add the characteristic bitter taste to beer.

Common hops and hops are semantically related. Sometimes you can replace phrase "Common hops" with "Hops", this terms are similar.