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Hypericaceae
Triadenum

not marked as a favorite taxon Triadenum Rafinesque. Common name: Marsh St. John's-wort.

Key to Triadenum

A genus of about 10 species, perennial herbs, of e. North America and e. Asia. Sometimes merged into Hypericum, Triadenum is one of a few basal clades that seem better separated as separate at generic rank from Hypericum.

Glossary (beta!)

References: Robson (2015d) In Flora of North America Editorial Committee (2015). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image #1 of Triadenum© Jacob Dakar | Triadenum virginicum | Original Image ⭷
image #2 of Triadenum© Gary P. Fleming | Triadenum fraseri | Original Image ⭷
image #3 of Triadenum© Richard & Teresa Ware | Triadenum virginicum CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #4 of Triadenum© Gary P. Fleming | Triadenum walteri | Original Image ⭷
image #5 of Triadenum© Richard & Teresa Ware | Triadenum virginicum CC-BY-NC, permission granted to NCBG

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