Definition that contains floral envelope
- corolla (botany) the whorl of petals of a flower that collectively form an inner floral envelope or layer of the perianth
- calyx (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green
- chlamydeous having a floral envelope or perianth consisting of a calyx and/or corolla
- achlamydeous not having a floral envelope or perianth