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n, pl -gonia (-ˈɡəʊnɪə)
another name for perianth
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|Noun||1.||perigonium - collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils|
covering, natural covering, cover - a natural object that covers or envelops; "under a covering of dust"; "the fox was flushed from its cover"
blossom, flower, bloom - reproductive organ of angiosperm plants especially one having showy or colorful parts
corolla - (botany) the whorl of petals of a flower that collectively form an inner floral envelope or layer of the perianth; "we cultivate the flower for its corolla"
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
falls - the petals or sepals of a flower that bend downward (especially the outer perianth of an iris)
plant organ - a functional and structural unit of a plant or fungus