From Velda McCune
http://www.geograph.org.uk/photo/3129730
https://creativecommons.org/licenses/by-sa/2.0/
https://www.flickr.com/photos/lwr/4416134759
https://creativecommons.org/licenses/by-nc-sa/2.0/
https://commons.wikimedia.org/wiki/File:PSM_V79_D459_Logarithmic_spiral_in_flower_growth_configuration.png
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923.