"perianth" in the noun sense
1. perianth, chlamys, floral envelope, perigone, perigonium
collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License