Heartsease (Viola tricolor) flowers. This plant has long been used in traditional herbal medicine. It is believed to act as an expectorant (aiding cou

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Heartsease (Viola tricolor) flowers. This plant has long been used in traditional herbal medicine. It is believed to act as an expectorant (aiding coughing) and a diuretic. Photographed in the UK.

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Size: 3433px × 5150px
Photo credit: © BOB GIBBONS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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