The free screensaver, Sunflowers, was created by RateMyScreensaver.com and contains 19 high resolution images of sunflowers. The sunflower (Helianthus annuus) is an annual plant native to the Americas in the family Asteraceae, with a large flower head (inflorescence). The stem of the flower can grow up to 3 metres tall, with the flower head reaching 30 cm in diameter.
Sunflowers in the bud stage exhibit heliotropism. At sunrise, the faces of most sunflowers are turned towards the east. Over the course of the day, they move to track the sun from east to west, while at night they return to an eastward orientation. This motion is performed by motor cells in the pulvinus, a flexible segment of the stem just below the bud. As the bud stage ends, the stem stiffens and the blooming stage is reached. - wiki Screensaver Picture Count: 19 Screensaver Type: Slideshow Credit: All images in this screensaver fall under one of the following licenses: Creative Commons, Attribution ShareAlike 2.0, Attribution ShareAlike 2.5, public domain, GNU Free Documentation License See also: Free screensaver, Free screensavers, Nature, Flowers, Sunflower, Screen saver, Screensaver
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