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Triadenum walteri
greater marsh St. Johnswort St. John's-wort Family
Triadenum walteri Hypericaceae
common name
  greater marsh St. Johnswort
accepted scientific name
  Triadenum walteri (J.F. Gmel.) Gleason
rules for finding collection records
  Hypericum walteri (127)
  Triadenum walteri (620)
family name
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 2nd week of November

How Likely at this Location (25%)
Name Match (100%)
Plant Showiness (45%)
base map where plant found
mag select

grid lines base