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Claws are distinctly developed in petals of some flowers of the family Brassicaceae, such as Erysimum cheiri. The inception and further development of petals show a great variety of patterns. [7] Petals of different species of plants vary greatly in colour or colour pattern, both in visible light and in ultraviolet.
Floral diagram of Anagallis arvensis. [1]: 307 The dot represents the main axis, green structure below is the subtending bract.Calyx (green arcs) consists of five free sepals; corolla (red arcs) consists of five fused petals.
The corolla is gametopetalous, the five petals may be joined forming a tube with 4 or 5 lobes (in the flower called tubulose flower or floret, or two groups of petals joined (in the case of bilabiated flowers, with an upper lip formed by 2 petals and a lower lip formed by 3 petals), or they can present a short tube and the limb prolonged ...
↯ K3 [C3 A1°–3°+½:2°] Ğ(3) [1]: 39 – the formula of Canna indica; asymmetric flower; calyx of three free sepals; corolla of three free petals joined with androecium; androecium in two whorls, the outer whorl contains 1–3 staminodes, the inner contains ½ of a stamen and 2 staminodes; gynoecium fused of 3 carpels, inferior ovary
Flowers consist of a combination of vegetative organs – sepals that enclose and protect the developing flower. Petals attract pollinators, and reproductive organs that produce gametophytes, which in flowering plants produce gametes. The male gametophytes, which produce sperm, are enclosed within pollen grains produced in the anthers.
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[9] [10] The flowers of coral trees are diadelphous and are considered papilionaceous, but the wings are much reduced, suggesting a flower with three petals. [1] [10] Their keel petals are elongate, fused together and sometimes tubular to facilitate pollination by certain bird groups, [10] while secondary compounds in their nectar seem to repel ...
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