Dahlia Flower – Cattle is a genus of shrubby, tuberous, herbaceous perennial plants native to Mexico and the Americas. Composite (also called Asteraceae) Belongs to the dicotyledonous plant family, its garden relatives include sunflowers, daisies, chrysanthemums and zinnias.
There are 42 species of dahlias, hybrids are commonly grown as garden plants. Flower forms are variable, with one head per stem; They can be as little as 5 cm (2 in) or 30 cm (1 ft) in diameter (“a dinner plate”).
This great diversity results in dahlias being octoploid that is, they have eight sets of homologous chromosomes, while most plants only have two.
In addition, dahlias also contain many transposons genetic fragments that move from one location on an allele to another which contributes to their great diversity.
Stems are deciduous, ranging from at least 30 cm (12 in) to 1.8–2.4 m (6–8 ft) in height. Most species do not produce cut flowers. Like most plants that do not attract sct-pollinated insects, they are brightly colored, with the exception of blue, displaying most of the colors.
Dahlia Flower Seed
The tubers were grown as a food crop by the Aztecs, but this use largely disappeared after the Spanish conquest. Attempts to introduce tubers as a food crop in Europe failed.
Full Dahlia Flower Stages: (second row starts clockwise from first image) Full bloom, blooming bud. Bud, Bud on the tree and the Dahlia plant; Held at NIT Agartala, India
Dahlias are perennial plants with tuberous roots, although they are grown as annuals in some regions with cold winters.
While some have herbaceous stems, others have stems that are lignite in the absence of secondary tissue and re-grow after winter dormancy, leading to further growing seasons.
As a member of the Asteraceae, dahlias have a flower head that is actually a compound (hence the older name composite) citral disk floret and surrounding ray florets.
Each flower is a flower in its own right, but is often misdescribed as a petal, especially by gardeners. The modern name Asteraceae refers to the star like appearance of the surrounding rays.
How To Grow And Care For Dahlias
The Spanish reported finding the plant growing in Mexico in 1525, but the earliest known description is from Francisco Hernández, physician to Philip II, who visited Mexico in 1570 to study “the natural products of this country.”
They were used as a food source by indigenous peoples and were collected in the wild and cultivated. The Aztecs used them to treat epilepsy.
Indigenous peoples identified the plant variously as “chichipatal” (Toltecs) and “acocotal” or “cocoxochital” (Aztecs).
From Hernández’s conception of the Aztecs to Spanish, through various other translations, the word reads “water cane”, “hookah”, “hookah flower”, “hollow stem flower” and “cane flower”. All this indicates the hollowness of the stem of the plant.
Hernández described two species of dahlias (the faithful Dahlia pinnata and the giant Dahlia imperialis) and other medicinal plants from New Spain.
Francisco Domínguez, Hidalgo Gutleman, who accompanied Hernández for part of his seven-year study, created a series of drawings that complemented the four-volume report.
Three of his drawings showed flowering plants: two resembled modern dahlias and one resembled a type of dahlia merki; All show a high degree of double.
In 1578, a manuscript entitled Nova Plantarum, Animalium et Mineralium Mexicorum Historia was back at the Escorial in Madrid;
How To Grow Border Dahlias
They were only translated into Latin in 1615 by Francesco Ximes. In 1640, Francesco Ceci, president of Rome’s Accademia dei Linci, purchased Zymes’s translation and, after annotation, published it in two volumes in 1649–1651 as Rerum medicarum nova.
Hispania Thesaurus Cu Nova Planetarium, Animalium and Mineralium Mexicorum Historia. The original manuscripts were destroyed in a fire in the mid-1600s.
In 1787, the French botanist Nicolas-Joseph Thierry de Monville, who had stolen from Mexico a cochineal worm, prized for its scarlet color, reported strangely beautiful flowers in a garden in Oaxaca.
In 1789, Victe Cervantes, director of the Botanical Guard of Mexico City, gave “plant parts” to Abbé Antonio José Cavanillas, director of the Royal Guard in Madrid.
Cavanillas one plant bloomed the same year, another a year later. In 1791 he named the new growth “dahlia” for Anders (Andreas) Dahl.
Dahlia Flower Seeds
The first plant was called Dahlia pinnata after the pinnate leaves; Second, dahlia rose for its pink-purple color. In 1796, Cavanilles flowered a third plant from Cervantes, which he named Dahlia coccinia for its red color.
In 1798 Cavanillas St. d. Pinnata seeds Parma, Italy. In that year the Marchioness of Bute, wife of the Earl of Bute, the celebrated ambassador to Spain, obtained some seeds from the Cavanilles, and sent them to the Cave Guards, where they flourished, but after two or three years they were lost.
In the following years, Madrid deployed Berlin and Dresden in Germany and Turin and Thailand in Italy. In 1802, Cavanilles st the tubers of “the three” .
(D. pinnata, D. rosea, D. coccinea) to the Swiss botanist Augustin Pyramus de Candolle in Montpelier, France, to Andre Thouin in the Jardin des Plantes in Paris, and to the Scottish botanist Kev. William Ayton at the Guards.
In the same year, John Fraser, an English nurseryman and later collector of botanical plants for the Tsar of Russia, d. brought coccinia seeds from Paris to the apothecary gardens in Gland, where a year later they bloomed in his greenhouse, which gave Botanical Magazine an example.
Red Dahlia Flower Beautiful
In 1804, a new species, Dahlia sambucifolia, was successfully cultivated at Holland House, Cussington. In Madrid in 1804, Lady Holland received either dahlia seeds or tubers from Cavanilles.
He sent back to Gland Mr. Buaniuti, Lord Holland’s librarian at Holland House, who had successfully grown the plants.
“Jurinka you brought to our isle, Your praise will speak forever; Center guard sweet as your smile and color bright as your face.”
In 1805, the German naturalist Alexander von Humboldt received additional seeds from Mexico to Gland in Ayton, Thuyn, Paris, and Christoph Friedrich Otto, director of the Berlin Botanical Guard.
More importantly, he gave the seed to botanist Karl Ludwig Wildow in Germany. Willodo has now reclassified a rapidly growing number of species, changing Gus from Dahlia to Georgina; After the naturalist Johann Gottlieb Georgy.
He described the species Cavanillus under the name Georgina variabilis d. Piñata and d. Added to Rosa; D. Coccinia was still considered a separate species, which he called Georgina coccina.
Reasons Your Dahlias Aren’t Blooming And How To Fix It ?
Since 1789, when Cavaniels first flowered dahlias in Europe, many growers, botanists and taxonomists have continued to try to determine the evolution of dahlias into modern times.
At least 85 species have been reported: about 25 of these are reported for the first time from the wild; The rest appeared in gardens in Europe.
They were thought to be hybrids, the result of crosses between previously described species, or developed from seeds by Humboldt from Mexico in 1805, or perhaps from some other undocumented seed that found its way to Europe.
Many of these were soon discovered dormant with previously described species, but the largest number are new species.
Morphological variation is much more pronounced in dahlias. William John Cooper Lars, who hybridized hundreds of families of dahlias in the 1920s, said: “I have yet to see two plants in the families that I have raised that do not differ from each other.
The number of different species is relatively low due to the constant reclassification of the 85 reported species, as there is much disagreement among systematists today about taxonomy.
In 1829, all species growing in Europe were designated D. variabilis, Desf. has been reclassified under the catch-all name, although this is not the accepted name.
Through the interspecific crossing of Humboldt seeds and Cavanillus species, 22 new species were reported by that year, classified in different ways by many different taxonomists, causing considerable confusion. What species was it?
Pink Ball Dahlia Flower In Selective Focus Photography · Free Stock Photo
In the 1830s, William Smith suggested that all types of dahlias could be divided into two groups based on coloration, red and purple. Investigating this idea, Lars discovered that D.
With the exception of variabilis, all species of dahlias can be classified into one of two groups based on flower color: Group I (Ivory Magenta) or Group II (Yellow-Orange-Red).
Gus Dahlia is found in the subfamily Asteroideae of Asteraceae, in the tribe Coriopsiidae. It is the second largest genus in this phylum, after Coreopsis.
Scherff (1955), in the first modern classification, described three sections for the 18 species he recognized, Pseudodron, Epiphytum and Dahlia.
In contrast, Gianassi (1975) reduced Gus to only two sections, Tamophyllone and Dahlia, using a phytochemical analysis based on flavonoids, the latter having three subsections, Pseudodron, Dahlia and Murki.
When he described two new species (Dahlia tubulata and D. congestifolia) in the 1980s, he placed them in their current sections.
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