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OAC-BIO Herbarium. University of Guelph, Canada. Year: 2012.   cc-by-nc-sa-3.0

Triadenum virginicum (Virginia marsh St. Johnswort) is a herbaceous species of plants in the family Hypericaceae, with a self-supporting growth habit. It has simple, broad leaves. It is a photoautotroph.

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EOL has data for 11 attributes, including:

Known occurrences, collected specimens and observations of Virginia marsh St. Johnswort