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Helianthus

Posted by
Steven (Chicagoland, United States) on 17 September 2008 in Plant & Nature and Portfolio.

The sunflower's scientific name is Helianthus from helios (sun) and anthos (flower). One of the common species is named annuus because it is an annual plant which grows for just one year and is then replaced by new plants from seed.

Sunflowers are part of the daisy family which was called Compositae, because they have composite flower heads - their heads are not one flower but hundreds of little flowers, each of which can form a new seed!
They are arranged in a beautiful geometric concentric pattern. The geometric pattern is one which is found in several places in nature, following what mathematicians call Fibonacci numbers - where each number is the sum of the two numbers before it (such as 1, 2, 3, 5, 8, 13, 21 and so on..).

Canon PowerShot A630 1/80 second F/4.0 8 mm

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Saeed from Tehran, Iran

nce shot

17 Sep 2008 7:21am

Lemuel from United States

What a fanatstic pattern your shot captures!

17 Sep 2008 10:08am

zOOm from Paris, France

Within the heart of a flower. Gorgeous. Well done Steven.

17 Sep 2008 10:44am

MJ from Delaware, United States

Thanks for the math lesson... I just prefer to look at the patterns and the color and eat the seed
Great close up.......

17 Sep 2008 6:06pm

Volodia from Mississauga, Canada

Soo yellow, love it.

17 Sep 2008 7:34pm

MadScientist from Düsseldorf, Germany

Wow, a great close-up with vivid colours, shows the geometry very well!

18 Sep 2008 12:03am

Elisa from Massachusetts, United States

beautiful!!! thanks for the info!!

18 Sep 2008 4:02am

Earnest from Oklahoma, United States

Fantastic work, Steven!

24 Sep 2008 1:05am