Actinomorphic flower | plant anatomy | Britannica (original) (raw)
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description
In flower: Form and types …it is termed regular or actinomorphic. A bilaterally symmetrical flower, as in orchids (see photograph) and snapdragons, is irregular or zygomorphic. Read More
floral symmetry
In symmetry: Symmetry in flowers …and is referred to as actinomorphic, or radially symmetrical, as in the petunia, buttercup, and wild rose. Differences in size or shape of the parts of a whorl make the flower irregular (as in the canna and Asiatic dayflower). When a flower can be divided by a single plane into… Read More
In angiosperm: The corolla …flower is called regular or actinomorphic (e.g., buttercup, Ranunculus; Ranunculaceae). In regular flowers, any line drawn through the centre will divide the flower into two identical halves. When at least one petal of the corolla is different, the flower has bilateral symmetry and is called irregular or zygomorphic (e.g., violets,… Read More
