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greater marsh St. Johnswort
Triadenum walteri
greater marsh St. Johnswort St. John's-wort Family
Triadenum walteri Hypericaceae
--more--
common name
  greater marsh St. Johnswort
accepted scientific name
  Triadenum walteri (J.F. Gmel.) Gleason
rules for finding collection records
  Hypericum walteri (295)
  Triadenum walteri (828)
family name
  Hypericaceae
Image Author: ©2012 Layla Dishman, ©2002 Sonnia Hill
Image License: Authors' permission
Image Source Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color
Leaf: Opposite
Plant Observed 2nd week of May thru 3rd week of November

How Likely at this Location (26%)
Name Match (100%)
Plant Showiness (45%)
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Wetland
Riparian
Forest
Aquatic
Native Plant Status
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native Native
native Not Present

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