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Typically, the floral formula is used to represent the morphological characteristics of the flowers of a given plant family, rather than of a particular species. The following are the most commonly used symbols: [28] K = calyx; for example, "K5" indicates that the flower has 5 sepals. C = corolla; for example, "C3" means that the flower has 3 ...
A cyclic flower is a flower type formed out of a series of whorls; [1] sets of identical organs attached around the axis at the same point. Most flowers consist of a single whorl of sepals termed a calyx; a single whorl of petals termed a corolla; one or more whorls of stamens (together termed the androecium); and a single whorl of carpels termed the gynoecium.
Leaf whorls occur in some trees such as Brabejum stellatifolium and other species in the family Proteaceae (e.g., in the genus Banksia). In plants such as these, crowded internodes within the leaf whorls alternate with long internodes between the whorls. The morphology of most flowers (called cyclic flowers) is based on four types of whorls:
[3] [4] Well-known commelinids include palms and relatives (order Arecales), dayflowers, spiderworts, kangaroo paws, and water hyacinth (order Commelinales), grasses, bromeliads, rushes, and sedges (order Poales), and ginger, cardamom, turmeric, galangal, bananas, plantains, and bird of paradise flower (order Zingiberales).
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This article lists the living orders of the Viridiplantae, based primarily on the work of Ruggiero et al. 2015. [1] Living order of Lycophytes and ferns are taken from Christenhusz et al. 2011b [2] and Pteridophyte Phylogeny Group. [3]
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Especially in biennial plants, the main shoot can grow with prolonged internodes and even branches. It is not unusual that the leaves of the rosette and those of the shoot differ in shape. [2] As form, "rosette" is used to describe plants that perpetually grow as a rosette and the immature stage of plants such as some ferns.