All photographs copyright (2003-2013) by Kris H. Light

<strong>Great St. Johnswort</strong>
<em>Hypericum pyramidatum</em> /St. Johnswort Family<br>
This plant is often used in landscaping. Plants in the Hypericum species cause photosensitivity in animals that eat them. For instance, horses, sheep, and g...
Great St. Johnswort
Hypericum pyramidatum /St. Johnswort Family

This plant is often used in landscaping. Plants in the Hypericum species cause photosensitivity in animals that eat them. For instance, horses, sheep, and goats with white patches on their skin can suffer sunburn, swelling, and redness in those areas. The lips, ears and eyelids are especially sensitive. The toxin is hypericum.
Perennial
Where seen: Oak Ridge

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