Begonia is a genus of perennial flowering plants in the Begoniaceae family. This genus contains 1,795 different plant species. Begonia derives from subtropical and tropical wet climates. Some species are generally grown indoors as ornamental ornamental plants in cold climates. In cold climates some species are cultivated outside in the summer for their brightly colored flowers, which have sepals but no petals.
Video Begonia
Description
With 1,839 species, Begonia is the fifth largest angiosperm genus. These species are terrestrial herbs (sometimes epiphytes) or undershrubs, and occur in subtropical and tropical moist climates, in South and Central America, Africa, and southern Asia. Terrestrial species in the wild are usually vertical, rhizomatous, or tuberous. Monoecious plants, with unisexual male and female flowers that occur separately on the same plant; males contain many stamens, and females have large inferior ovaries and two to four branched or branched stigmas. In most species, the fruit is a winged capsule containing small seeds, though baccate fruit is also known. Leaves, which are often large and variedly marked or diverse, are usually asymmetrical (unbalanced).
Maps Begonia
Taxonomy
The genus name Begonia was created by Charles Plumier, French botanist, and adopted by Linnaeus in 1753, the award of Michel BÃ © Å © gon, the former French colonial governor of Saint-Domingue (now Haiti).
Phylogeny
The following phylogenetic tree shows the relationship between different parts of the Begonia genus. Species
Species selected:
Cultivation
Different begonia groups have different cultural requirements, but most species come from the tropics, so they and their hybrids require warm temperatures. Most are undersea plants and require a light shade; some will tolerate full sunlight, especially in warmer climates. In general, begonias require a well-dried growing medium that is not constantly wet or allowed to dry completely. Many begonias will grow and bloom throughout the year except the tuberous begonias, which usually have dormant periods. During this dormant period, the bulbs can be stored in a cool, dry place. Begonia from the semperflorens group (or begonia wax) â € <â € Most begonias are easily propagated by division or from stem cuttings. In addition, some may be propagated from leaf cuttings or even leaf parts, especially members of the rhizomatous and rex groups. The following begonia hybrids have been awarded the Royal Horticultural Society of Garden Merit Award: - Horticultural nomenclature
Nomenclature of begonia can be very complex and confusing. The term 'picotee' refers to the edges on the petals that contrast with the main petal color, if the color is mixed. If not, then the term 'marginata' is used, but sometimes this term is used simultaneously. 'Non-Stop' refers to a tuberous camellia hybrid that under certain conditions will bloom 'non-stop' throughout the year.
Because sometimes they show white, pink, red, or yellow flowers and often interestingly marked leaves, countless species and countless hybrids and cultivars are cultivated. This genus is unusual in these species throughout the genus, even genera that come from different continents, often can hybridize one another, and this has caused a large number of cultivars. The American Begonia Society classifies begonias into several major groups:
- like cane
- like a bush
- tuberous
- rhizomatous
- semperflorens (fibrous fibrous wax or fibrous)
- Rex
- trailing-scandent
- thick eyes
For the most part, these groups do not fit into the grouping of formal taxonomy or phylogeny, and many species and hybrids have characteristics of more than one group, or are incompatible with one of them.
Cultivators and cultivar groups
- Angel wing begonia (hybrid)
- Begonia 'Extraordinary'
- Begonia ÃÆ'â € " sedenii
- Begonia ÃÆ'â € " semperflorens-cultorum hort.
- Begonia x benariensis (angel wings begonia x fibrous begonia F1 hybrid)
- Begonia ÃÆ'â € " tuberhybrida Voss - begonias plants, sometimes considered a cultivar group, Begonia Tuberhybrida Group
Culture
The 'Kimjongilia' cultivar is the North Korean flower symbol.
Most begonias taste sour to taste, and some people in some areas eat it. It is safe in small quantities but potentially toxic in large quantities due to the prevalence of oxalic acid in the tissues.
References
External links
- Ã, Chisholm, Hugh, ed. (1911). "Begonia". EncyclopÃÆ'Â|dia Britannica (issue 11). Cambridge University Press.
- American Begonia Society
- W. S. Hoover et al. 2004, Notes on Southeast Asia's Begonia geography and species diversity in mountain forests
- The phylogenetic relationship of Afro-Malagasy Members of the Great Genus Begonia Inferred from trnL Intron Sequences
- Filogeni Begonia Using the Nuclear Ribosome Order Data and Morphological Character
- Logee Suggestions for Growing Begonia
Source of the article : Wikipedia
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