Stemless carline thistle (Carlina acaulis), (AKA dwarf carline thistle or silver thistle). This plant can be used to help foreca
Stemless carline thistle (Carlina acaulis), (AKA dwarf carline thistle or silver thistle). This plant can be used to help forecast the weather. The dried flowers respond to the amount of humidity in the air and can be used as hygrometers. The flower closes at the approach of rain. Photographed in Tirol, Austria, in August
Size: 4288px × 2848px
Photo credit: © Ilanphoto / Alamy / Afripics
License: Royalty Free
Model Released: No
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