Celebration Dahlia

This photograph yellow dahlias was taken while a visiting the Chicago Botanical Gardens in Glencoe Illinois.... more

by Bruce Bley

Title

Celebration Dahlia

Artist

Bruce Bley

Medium

Photograph - Photography

Description

This photograph yellow dahlias was taken while a visiting the Chicago Botanical Gardens in Glencoe Illinois.

Dahlia is a genus of bushy, tuberous, herbaceous perennial plants native to Mexico. 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 2 inch in diameter or up to 1 foot. (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 12 inches to more than 6�8 feet. The majority of species do not produce scented flowers or cultivars. Like most plants that do not attract pollinating insects through scent, they are brightly colored, displaying most hues, with the exception of blue.

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Uploaded

July 25th, 2015