43.7 MB (3.8 MB compressed)
4533 x 3368 pixels
38.4 x 28.4 cm ⏐ 15.1 x 11.2 in (300dpi)
'NATURE'S IMAGES, INC.' / SCIENCE PHOTO LIBRARY 'NATURE'S IMAGES, INC.' / SCIENCE PHOTO LIBRARY
Wavyleaf Thistle, Cirsium undulatum, showing a mature flower, an almost mature seed head and a ripe seed head dispersing its parachute-like seeds. The seeds of thistles resemble those of the dandelion, and like them, are widely distributed by the wind. The wavyleaf thistle is found from TX west to eastern AZ. Photo taken Dallas, TX.
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