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Most flowers are actinomorphic ("star shaped", "radial"), meaning they can be divided into three or more identical sectors which are related to each other by rotation about the center of the flower. Typically, each sector might contain one tepal or one petal and one sepal and so on.
A foxglove with a peloric flower. (Digitalis purpurea 'monstrosa')A peloric foxglove (Digitalis purpurea) flowerPelorism is the term, said to be first used by Charles Darwin, for the formation of 'peloric flowers' [1] which botanically is the abnormal production of radially symmetrical (actinomorphic) flowers in a species that usually produces bilaterally symmetrical (zygomorphic) flowers. [2]
Flowers actinomorphic and hermaphrodite with 6 undifferentiated tepals in two whorls of three, the same number and arrangement of stamens, and a superior ovary with 3 fused carpels. Individual species and genera may have more or less derived formulas.
Each flower has five white or rarely pinkish-white to purplish petals. [3] The central flowers of the umbel have radial symmetry (actinomorphic), while the flowers around the perimeter of the umbel have bilateral symmetry (zygomorphic) since the outermost petals are enlarged.
Diagram of flower parts. In botany, floral morphology is the study of the diversity of forms and structures presented by the flower, which, by definition, is a branch of limited growth that bears the modified leaves responsible for reproduction and protection of the gametes, called floral pieces.
Pelargonium peltatum flowers resemble those of geraniums, but are conspicuously zygomorphic. Geranium incanum, with an actinomorphic flower typical of the genus The white flower of Pisum sativum, the Garden Pea: an example of a zygomorphic flower.
The flower color varies from darker shades of purple through soft, pinkish purple, and a white flowering form exists as well. The actinomorphic flowers have five reflexed petals and an elevated central crown. After blooming, green follicles, approximately 12 cm (4 + 3 ⁄ 4 in) long, are produced that when ripe, split open
Flowers have radial symmetry (actinomorphic), [1] and are borne in heads that are cymes or racemes, or are solitary in axils. [6] They are perfect (bisexual), with a synsepalous, five-lobed calyx united into a tube at the base. [1] [6] Inflorescences are terminal or axillary. Five petals are united into a tube with four or five epipetalous ...