Sunflower Field - July
by Inge Johnsson
Title
Sunflower Field - July
Artist
Inge Johnsson
Medium
Photograph - Digital Capture, Watermark Not On Actual Print
Description
North Texas sunflower field in July
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Sunflower (Helianthus) is a genus of plants comprising about 52 species in the Asteraceae family, all of which are native to North America. The common name "sunflower" also applies to the popular annual species Helianthus annuus. This and other species, notably Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions as food crops and ornamental plants.
The genus is one of many in the Asteraceae that are known as sunflowers. It is distinguished technically by the fact that the ray flowers, when present, are sterile, and by the presence on the disk flowers of a pappus that is of two awn-like scales that are cauducous (that is, easily detached and falling at maturity). Some species also have additional shorter scales in the pappus, and there is one species that lacks a pappus entirely. Another technical feature that distinguishes the genus more reliably, but requires a microscope to see, is the presence of a prominent, multicellular appendage at the apex of the style.
There is quite a bit of variability among the perennial species that make up the bulk of the species in the genus. Some have most or all of the large leaves in a rosette at the base of the plant and produce a flowering stem that has leaves that are reduced in size. Most of the perennials have disk flowers that are entirely yellow, but a few have disk flowers with reddish lobes. One species, H. radula, lacks ray flowers altogether.
The domesticated sunflower, Helianthus annuus, is the most familiar species. Perennial sunflower species are not as popular for gardens due to their tendency to spread rapidly and become invasive.
Uploaded
May 6th, 2016
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Viewed 1,059 Times - Last Visitor from New York, NY on 04/14/2024 at 8:53 PM
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Comments (29)
Kay Brewer
Congratulations on your 3d place win in the Beautiful Sunflowers contest, Visions of Spring group! l/f
Dora Sofia Caputo Photographic Design and Fine Art
Warmest congratulations, Inge, on your Third Place win in the Beautiful Sunflowers Contest. Thank you for sharing your stunning work with us and for being part of Visions of Spring - Glances of Summer. F/L.
Brooks Garten Hauschild
Congratulations on your 1st place win in 'Sunflower Power ~ Art or Photography', Inge! Beautiful capture. My pleasure to host the contest. L/v.
Lyric Lucas
Congratulations, your creative and unique art work is featured in the "Out Of The Ordinary 1 A Day" group! 8/10/16
Morris Finkelstein
Beautiful panoramic view of the sunflower field with a colorful sky in the distance. The colors are spectacular, and the view is amazing! F/L