Cover and Floral envelope

Cover noun - A piece placed over an open container to hold in, protect, or conceal its contents.

Floral envelope and cover are semantically related. In some cases you can replace phrase "Floral envelope" with "Cover", this terms are similar.

Nearby Words: covered, covering, coverage, coverlet

Floral envelope noun - Collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils.

Cover and floral envelope are semantically related. You can use "Cover" instead a noun phrase "Floral envelope".