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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:
Linked numerical citations in the last column refer to Plants of the World. Except for Plants of the World, these books list genera alphabetically. "Latin plant name" or "Greek plant name" in the fourth column means that the name appears in Classical Latin or Greek or both for some plant, not necessarily the plant listed here.
No plant family has such a diverse range of flowers. Flowers are highly specialized in relation to their pollinators . Flowers are hermaphrodite (rarely unisexual), generally zygomorphic (bilaterally symmetrical), usually resupinates (i.e., the floral parts rotate 180° during development), often conspicuous and epigynous (i.e., the perianth ...
Magnoliopsida is a valid botanical name for a class of flowering plants. [1] By definition the class will include the family Magnoliaceae , but its circumscription can otherwise vary, being more inclusive or less inclusive depending upon the classification system being discussed.
There are 27 families of flowering plants whose earliest ancestors diverged from what became the two most prominent groups of flowering plants, the eudicots and monocots. [1] [a] They are quite diverse, with woody and non-woody plants, evergreen and deciduous shrubs and trees, and plants that grow in soil, in water and on other plants.
The plants are most often hermaphrodite but sometimes polygamomonoecious. The fruit can be a berry , drupe , capsule or samaras . The obvious feature that distinguishes Oleaceae and its sister family, Carlemanniaceae , from all others, is the fact that while the flowers are actinomorphic, the number of stamens is reduced to two.
Broccoli, a plant of the Cabbage family, Brassicaceae, is a cool-weather crop eaten boiled, steamed, or raw. The Roman natural history writer, Pliny the Elder , wrote about a vegetable which might have been broccoli and some recognize broccoli in the cookbook of Apicius , but its history is unclear.