Persicaria hydropiper

ClassificationDicots
FamilyPolygonaceae
Family (Traditional)Polygonaceae
GenusPersicaria
SpeciesPersicaria hydropiper (L.) Spach
Common NameMarshpepper knotweed, Wasserpfeffer
Growth Habitforb
Plant NotesHabit: forb; Woody/Herbaceous: herbaceous; Terrestrial/Aquatic: Terrestrial;
Leaf Arrangement: Alternate; Simple/Compound: Simple; Leaf Complexity: 0;
Hypanthium: No; Perianth Absent: No; Fruit Color: ;
*Average C-Value: 0.3
C value N/A
StatusNot Native; AGCP (OBL), EMP (OBL) (NWPL); TN[SNA] KY[S4?] (State Rank); GNR (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim

Synonyms

SynonymFull Citation
Polygonum hydropiper Polygonum hydropiper L.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Bath (KY), Campbell (KY), Clinton (KY), Floyd (KY), Franklin (KY), Graves (KY), Greenup (KY), Harlan (KY), Harrison (KY), Henderson (KY), Hickman (KY), Jackson (KY), Jefferson (KY), Jessamine (KY), Knox (KY), Larue (KY), Laurel (KY), Letcher (KY), Lewis (KY), Livingston (KY), Lyon (KY), Madison (KY), Mercer (KY), Powell (KY), Trigg (KY), Wayne (KY), Benton (TN), Blount (TN), Bradley (TN), Carroll (TN), Carter (TN), Coffee (TN), DeKalb (TN), Dyer (TN), Fentress (TN), Giles (TN), Hamilton (TN), Hardin (TN), Hawkins (TN), Haywood (TN), Henry (TN), Humphreys (TN), Jackson (TN), Knox (TN), Macon (TN), Maury (TN), Meigs (TN), Obion (TN), Overton (TN), Scott (TN), Shelby (TN), Stewart (TN), Unicoi (TN), Wayne (TN), Weakley (TN), Williamson (TN), Wilson (TN)

Herbaria represented by specimen data listed below: APSC, EKY, ETSU, HTTU, KNK, SWMT, TENN, UCHT

Range of years during which specimens were collected: 1938 - 2016

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
N/A Greenup Kentucky 02 Sep 1992 Landon E. McKinney
5253
EKY
Polygonum hydropiper
N/A Jackson Kentucky 17 Jul 1982 David D. Taylor
1859
EKY
Polygonum hydropiper
N/A Laurel Kentucky 20 Aug 1991 Landon E. McKinney
4808
EKY
Polygonum hydropiper
N/A Larue Kentucky 21 Aug 1993 Landon E. McKinney
5981
EKY
Polygonum hydropiper
N/A Knox Kentucky 17 Aug 1993 Deborah White
EKY
Polygonum hydropiper
N/A Harlan Kentucky 14 Aug 1998 Ronald L. Jones
8614
EKY
Polygonum hydropiper
N/A Franklin Kentucky 05 Oct 1980 Hal Bryan
FR-323
EKY
Polygonum hydropiper
31234100857505 Powell Kentucky 18 Sep 1988 R.C. Clark
22037
EKY
Polygonum hydropiper
N/A Jessamine Kentucky 10 Oct 1978 Johnnie B. Varner
11828
EKY
Polygonum hydropiper
N/A Laurel Kentucky 24 Aug 1985 Ralph L. Thompson
85-660
EKY
Polygonum hydropiper
N/A Livingston Kentucky 10 Sep 1992 Landon E. McKinney
5221
EKY
Polygonum hydropiper
N/A Harrison Kentucky 29 Sep 1961 Edward T. Browne Jr.
4815
EKY
Polygonum hydropiper
ETSU006319 Carter Tennessee 26 Aug 2015 Frosty Levy
ETSU
Persicaria hydropiper
N/A Carter Tennessee 21 Aug 2016 Frosty Levy
ETSU
Persicaria hydropiper
ETSU005914 Unicoi Tennessee 05 Aug 2015 Frosty Levy
ETSU
Persicaria hydropiper
31234100018173 Franklin Kentucky 05 Oct 1995 Jeffrey D. Crosby
EKY
Polygonum hydropiper
N/A Madison Kentucky 22 Jul 1984 Valerya Hyrne
45
EKY
Polygonum hydropiper
N/A Letcher Kentucky 04 Aug 1978 Jeffrey D. Sole
409
EKY
Polygonum hydropiper
N/A Mercer Kentucky 13 Jul 1991 David D. Taylor
15872
EKY
Polygonum hydropiper
N/A Franklin Kentucky 09 Aug 1956 Mary E. Wharton
10489
EKY
Polygonum hydropiper
N/A Henderson Kentucky 09 Oct 1980 Richard H. Hannan
6017
EKY
Polygonum hydropiper
N/A Jessamine Kentucky 10 Oct 1978 Johnnie B. Varner
11804
EKY
Polygonum hydropiper
N/A Clinton Kentucky 07 Aug 1999 Mark A. Gorton
99-1004
EKY
Polygonum hydropiper
N/A Fentress Tennessee 01 Aug 1989 Ronald L. Jones
6162
EKY
Polygonum hydropiper
N/A Henderson Kentucky 09 Oct 1980 Richard H. Hannan
6050
EKY
Polygonum hydropiper
N/A Lewis Kentucky 22 Aug 1995 Rudy A. Gelis
M2-915
EKY
Polygonum hydropiper
N/A Powell Kentucky Donald K. Walker
392
EKY
Polygonum hydropiper
N/A Unicoi Tennessee 11 Aug 2014 Frosty Levy
ETSU
Persicaria hydropiper
31973000015236 Bath Kentucky
KNK
Polygonum hydropiper
31973000015237 Wayne Kentucky
KNK
Polygonum hydropiper
31973000015238 Campbell Kentucky
KNK
Polygonum hydropiper
31973000015235 Bath Kentucky
KNK
Polygonum hydropiper
TENN-V-0088725 Jackson Tennessee
TENN
Polygonum hydropiper
TENN-V-0087624 Hawkins Tennessee
TENN
Polygonum hydropiper
TENN-V-0087626 Knox Tennessee
TENN
Polygonum hydropiper
TENN-V-0087615 Blount Tennessee
TENN
Polygonum hydropiper
TENN-V-0087623 Hardin Tennessee
TENN
Polygonum hydropiper
TENN-V-0087627 Macon Tennessee
TENN
Polygonum hydropiper
TENN-V-0087616 Carroll Tennessee
TENN
Polygonum hydropiper
TENN-V-0087620 Fentress Tennessee
TENN
Polygonum hydropiper
TENN-V-0087630 Shelby Tennessee
TENN
Polygonum hydropiper
TENN-V-0087618 Dyer Tennessee
TENN
Polygonum hydropiper
TENN-V-0087621 Giles Tennessee
TENN
Polygonum hydropiper
TENN-V-0087632 Williamson Tennessee
TENN
Polygonum hydropiper
TENN-V-0087633 Wilson Tennessee
TENN
Polygonum hydropiper
TENN-V-0087622 Hamilton Tennessee
TENN
Polygonum hydropiper
TENN-V-0087625 Haywood Tennessee
TENN
Polygonum hydropiper
TENN-V-0087631 Weakley Tennessee
TENN
Polygonum hydropiper
TENN-V-0088724 Benton Tennessee
TENN
Polygonum hydropiper
TENN-V-0087614 Benton Tennessee
TENN
Polygonum hydropiper
TENN-V-0087628 Maury Tennessee
TENN
Polygonum hydropiper
TENN-V-0087629 Obion Tennessee
TENN
Polygonum hydropiper
TENN-V-0087617 Coffee Tennessee
TENN
Polygonum hydropiper
TENN-V-0087619 Fentress Tennessee
TENN
Polygonum hydropiper
APSC0106322 Overton Tennessee
APSC
Persicaria hydropiper
APSC0080155 Hickman Kentucky
APSC
Persicaria hydropiper
APSC0007557 Henry Tennessee
APSC
Persicaria hydropiper
APSC0007513 Stewart Tennessee
APSC
Persicaria hydropiper
APSC0007508 Lyon Kentucky 01 Oct 1987 Edward Chester
APSC
Persicaria hydropiper
APSC0106320 Wayne Tennessee
APSC
Persicaria hydropiper
APSC0108187 Coffee Tennessee
APSC
Persicaria hydropiper
APSC0007311 Obion Tennessee
APSC
Persicaria hydropiper
APSC0007509 Trigg Kentucky 24 Sep 1987 Edward Chester
APSC
Persicaria hydropiper
APSC0007515 Stewart Tennessee
APSC
Persicaria hydropiper
APSC0075265 Floyd Kentucky
APSC
Persicaria hydropiper
APSC0007521 Trigg Kentucky 21 Oct 1989 Edward Chester
APSC
Persicaria hydropiper
APSC0079498 Graves Kentucky
APSC
Persicaria hydropiper
APSC0054850 Fentress Tennessee
APSC
Persicaria hydropiper
APSC0007382 Stewart Tennessee
APSC
Persicaria hydropiper
APSC0007511 Trigg Kentucky 24 Sep 1988 Edward Chester
APSC
Persicaria hydropiper
APSC0007510 Trigg Kentucky 10 Oct 1987 Edward Chester
APSC
Persicaria hydropiper
N/A Powell Kentucky Donald K. Walker
392
EKY
Polygonum hydropiper
HTTU034219 Hamilton Tennessee
HTTU
Polygonum hydropiper
HTTU019314 DeKalb Tennessee
HTTU
Polygonum hydropiper
HTTU019313 Scott Tennessee
HTTU
Polygonum hydropiper
HTTU019312 DeKalb Tennessee
HTTU
Polygonum hydropiper
UCHT030835 Knox Tennessee
UCHT
Polygonum hydropiper
SWMT02642 Tennessee 21 May 1938 T.W.S.
SWMT
Polygonum hydropiper
APSC0077787 Jefferson Kentucky 17 Oct 1982 Max Medley
APSC
Persicaria hydropiper
APSC0007512 Stewart Tennessee
APSC
Persicaria hydropiper
APSC0007300 Meigs Tennessee
APSC
Persicaria hydropiper
APSC0007514 Stewart Tennessee
APSC
Persicaria hydropiper
APSC0042447 Hardin Tennessee 26 Oct 2011 David H. Webb
APSC
Persicaria hydropiper
APSC0007303 Humphreys Tennessee
APSC
Persicaria hydropiper
UCHT030831 Bradley Tennessee
UCHT
Polygonum hydropiper
SWMT02638 Tennessee M. DeM
SWMT
Persicaria hydropiper
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Plant Photos

Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes
Persicaria hydropiper - Dwayne Estes