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Family: Acanthaceae (Acanthus family)
Mid-Atlantic bloom time: June - October
American Water-willow grows partially or intermittently submerged along still or flowing water. A perennial, it grows to 30-80 cm (12-31 inches) tall, with leaves that resemble willow tree leaves (hence the common name). It can form large colonies along shorelines, growing from its creeping rhizomes.
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9 June 2019
Great Falls National Park, Great Falls, VA 
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9 June 2019
Great Falls National Park, Great Falls, VA 
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9 June 2019
Great Falls National Park, Great Falls, VA 
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9 June 2019
Great Falls National Park, Great Falls, VA (colony along river bank) 
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7 June 2024
Hemlock Overlook Park, Clifton, VA 
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20 June 2022
Great Falls National Park, Great Falls, VA 
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20 June 2022
Great Falls National Park, Great Falls, VA 
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26 June 2023
Great Falls National Park, Great Falls, VA 
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