Great Falls Park, Great Falls, VA
Great Falls Park, Great Falls, VA
Great Falls Park, Great Falls, VA
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Family: Asteraceae
Mid-Atlantic bloom time: late July - October
White Snakeroot is poisonous, containing the toxin tremetol. In livestock (cattle, horses, goats and sheep), it can cause lethargy, trembling, weight loss, and even death. In humans, it most often appears as "milk sickness" because someone has ingested milk or meat from cattle that have grazed on the plant. Human symptoms include trembling, vomiting, and severe intestinal pain, and can also lead to death if not treated properly.
White Snakeroot was previously listed as Eupatorium rugosum, but has been moved to the genus Ageratina based on taxonomic studies. Two varieties are recognized in the Digital Atlas of the Virginia Flora: var. altissima (White Snakeroot) and var. roanensis (Appalachian White Snakeroot).
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1 September 2019
Great Falls Park, Great Falls, VA
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1 September 2019
Great Falls Park, Great Falls, VA
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1 September 2019
Great Falls Park, Great Falls, VA
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