part_of part of part of perianth corolla A collective phyllome structure (PO:0025023) that is composed of one or more petals (PO:0009032), comprising the inner whorl of non-reproductive floral organs (PO:0025395) and surrounds the androecium (PO:0009061) and the gynoecium (PO:0009062). PO:0009059 PO_GIT:541 PO_GIT:71 PO_GIT:98 The corolla (PO:0009059) is part of the perianth (PO:0009058). This definition is based on the complete flower, which has all four whorls. In many species, and in mutants one or more of the whorls may be missing. The corolla (PO:0009059) often functions to attract pollinators. corola (Spanish, exact) corollae (exact, plural) corollas (exact, plural) plant_anatomy 花冠 (Japanese, exact) collective phyllome structure