Reynoutria japonica

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:POLYGONACEAE
Species:Reynoutria japonica Houttuyn
Common Name:Japanese Knotweed; Japanese Bamboo; Japanese Buckwheat
Habitat:Escaped from cultivation and naturalized in urban forests, roadsides, and other altered habitats.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:**
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyPOLYGONACEAE - Buckwheat family
Genus Reynoutria
Species Reynoutria japonica Houttuyn - Japanese Knotweed; Japanese Bamboo; Japanese Buckwheat

Citation

Citation **
Basionym: **
Type: **

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Fallopia japonica    
Pleuropterus zuccarinii    
Polygonum cuspidatum    

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; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Calhoun, Clay, Colbert, Etowah, Hale, Houston, Jefferson, Lee, Randolph

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AUA, JSU, SAMF, TROY, UNA, UWAL

Range of years during which specimens were collected: 1998 - 2009

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
UNA00069568 Hale 14 Sep 2009 Cherie Bryant Steakley
1394		 UNA
Fallopia japonica (Houtt.) Ronse Decr. var. japonica
AUA_ACC007415 Jefferson 21 SEP 1959 JONES, JR., SAMUEL B.
S.N.		 AUA
REYNOUTRIA JAPONICA HOUTT.
TROY000022804 Randolph 21 Sep 1986 C. F. Nixon
3139		 TROY
Fallopia japonica (Houttuyn) R. Decraene
AUA_ACC066197 Jefferson 5 AUG 1988 DAVENPORT, LAWRENCE J.
2604		 AUA
REYNOUTRIA JAPONICA HOUTT.
JSU139806 Etowah 30 Jul 1995 L. Hodge-Spaulding
4292		 JSU
Reynoutria japonica Houttuyn
AUA_ACC065012 Randolph 21 SEP 1986 NIXON, C. F.
3139		 AUA
REYNOUTRIA JAPONICA HOUTT.
SAMF0005132 Jefferson 05 Aug 1988 Davenport, L. J.
2604		 SAMF
Reynoutria japonica Houttuyn
UWAL0011884 Autauga 21 Apr 2012 Keener, Brian R.
7153		 UWAL
Reynoutria japonica Houttuyn
AUA_ACC022289 Lee 25 JUN 1969 FLOYD, JR., JOHN A.
31		 AUA
REYNOUTRIA JAPONICA HOUTT.
UWAL0034213 Calhoun 28 May 2015 Spaulding, Dan
14278		 UWAL
Reynoutria japonica Houtt
UNA00047196 Houston 08 Jun 1998 John R. MacDonald
11408		 UNA
Polygonum cuspidatum Sieb. & Zucc.
AUA000033338 Calhoun 28 May 2015 SPAULDING, DANIEL D.
14278		 AUA
REYNOUTRIA JAPONICA HOUTT.
TROY000040862 Autauga 21 Apr 2012 Brian R. Keener
7153		 TROY
Reynoutria japonica Houttuyn
JSU139804 Clay 19 Oct 1996 J. M. Ballard
7028		 JSU
Reynoutria japonica Houttuyn
UNA00056887 Houston 28 Jun 1998 John R. MacDonald
11513		 UNA
Polygonum cuspidatum Sieb. & Zucc.
TROY000046599 Autauga 02 May 2017 Matthew R. Parker
713		 TROY
Reynoutria japonica Houttuyn
UWAL0005813 Jefferson 20 Jun 1998 Keener, Brian R.
1091		 UWAL
Reynoutria japonica Houttuyn
UWAL0030330 Jefferson 16 Sep 2014 Spaulding, Dan
14135		 UWAL
Reynoutria japonica Houtt.
JSU139805 Colbert 26 May 1996 R. D. Whetstone
17964		 JSU
Reynoutria japonica Houttuyn
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