Dahlia pinnata Cav. Captura: Captura: Espinavell, Molló, Camprodon, Vall de Camprodon, Ripollès, Catalunya.

            CATALÀ
Les dàlies (Dahlia) són un gènere de plantes amb flor de la família Asteraceae.
Són plantes perennes d'arrel tuberosa i flors esplèndides, originàries del Mèxic. N'hi ha unes 36 espècies i aproximadament 20,000 cultivars híbrids molt apreciades com a plantes de jardí i de test que s'han estès arreu del món.
Els asteques cultivaven les dàlies com a aliment i també per cerimònies i decoracions. Actualment la dàlia és la flor nacional del Mèxic.
Les dàlies són importants com a font d'aliment de les erugues de moltes papallones, com la Phlogophora meticulosa, Korscheltellus lupulina, Hepialus humuli i Noctua pronuba.
El nom del gènere prové d'Anders Dahl, botànic suec del segle xviii. En japonès es coneix com a Tenjikubotan (天竺牡丹) que significa "peònia de l'Índia". En hindi i urdu, la dàlia es coneix amb el nom de "belia" (बेलिया o بیلیا).

ENGLISH
Dahlia is a genus of bushy, tuberous, herbaceous perennial plants native to Mexico and Central America. A member of the Compositae (also called Asteraceae) family of dicotyledonous plants, its garden relatives thus include the sunflower, daisy, chrysanthemum, and zinnia. There are 42 species of dahlia, with hybrids commonly grown as garden plants. Flower forms are variable, with one head per stem; these can be as small as 5 cm (2 in) diameter or up to 30 cm (1 ft) ("dinner plate"). This great variety results from dahlias being octoploids—that is, they have eight sets of homologous chromosomes, whereas most plants have only two. In addition, dahlias also contain many transposons—genetic pieces that move from place to place upon an allele—which contributes to their manifesting such great diversity.
The stems are leafy, ranging in height from as low as 30 cm (12 in) to more than 1.8–2.4 m (6–8 ft). The majority of species do not produce scented flowers. Like most plants that do not attract pollinating insects through scent, they are brightly colored, displaying most hues, with the exception of blue.
The dahlia was declared the national flower of Mexico in 1963.The tubers were grown as a food crop by the Aztecs, but this use largely died out after the Spanish Conquest. Attempts to introduce the tubers as a food crop in Europe were unsuccessful.

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Taken in: Spain / Catalonia / Molló / Espinavell (show map)

Taken on: October 29, 2022

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Dahlia pinnata Cav. « less

Sets appears in: • CAMPRODON • FLORS SILVESTRES more » • 2022 • Espinavell • Ripollès « less

Groups appears in: • Catalunya • Flowers wild more » • All Around the World...Post 6 - Comment 3 • Flower Beauty ! • ` FLICKR ´ • Beautiful Flowers Photographs. • flickr 4 all • Flores, flores, flores y más flores • Flors amb nom • Flores Preciosos de la primavera • !!Bold, Vibrant, and Colorful!! « less

Camera: Nikon D500, f/9.0, 1/1000 sec, 145mm (=217mm), ISO 11400 (more info) (hide info)

Camera:	Nikon D500
Lens:	18.0-300.0 mm f/3.5-6.3
Aperture:	f/9.0
Exposure Time:	0.001 sec (1/1000)
Focal Length:	145mm (35mm equivalent: 217mm)
ISO:	11400
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Aperture-priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Gain Control:	High gain up
Color Space:	sRGB
Software:	Ver.1.15
Show full info

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