Persicaria amphibia (L.) Gray var. stipulacea (N. Coleman) H. HaraNative
SynonymsPolygonum amphibium L. var. stipulaceum N. Coleman
Persicaria mesochora Greene
Persicaria nebraskensis Greene
Polygonum amphibium L. var. hartwrightii (A. Gray) Bissell
Polygonum amphibium L. ssp. laevimarginatum Hulten
Polygonum coccineum Muhl. ex Willd. var. rigidulum (E. Sheldon) Stanford
Polygonum fluitans Eaton
Polygonum hartwrightii A. Gray
Polygonum inundatum Raf.
Polygonum natans Eaton
Common name(s)water knotweed; water heartsease
Conservation statusNot threatened

Found at the following sites :
INDU Great Marsh, Tansley Marsh
Hidden Prairie
Little Calumet River Prairie & Wetlands

Present Absent Previous, not current
Plants - See list of all plant species found at NIRMI sites
Fungi - See list of all fungi species found at NIRMI sites

Protected Species Policy
To prevent poaching, NIRMI does not provide the location of any endangered, threatened, or otherwise protected species found within any of our plots. All lists, charts, and calculations (richness, FQI, etc.) therefore exclude these species as well.
If you are conducting research and have a legitimate need for this unfiltered data, please contact us at
nirmi (at) iun (dot) edu.

(C)opyright 2010-2023 NIRMI