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Polygonum hydropiperoides Michx.
Swamp smartweed



General Information
Symbol: POHY2
Group: Dicot
Family: Polygonaceae
Duration: Perennial
Growth Habit: Forb/herb
Native Status: AK   I
CAN   N
PR   N
L48   N
Characteristics
Data Source and Documentation
Alabama"Arkansas"California"Connecticut"Delaware"DistrictFlorida"Georgia"Idaho"Illinois"Indiana"Iowa"Kansas"Kentucky"Louisiana"Maine"Massachusetts"Michigan"Minnesota"Mississippi"Missouri"Nebraska"Nevada"NewNewNewNewNorthNorthOhio"Oklahoma"Oregon"Pennsylvania"RhodeSouthSouthTennessee"Texas"Vermont"Virginia"Washington"WestWisconsin"
Distribution Map
green distribution legend Present blank legend Absent/Unreported

See U.S. county distributions (when available) by clicking on the map or the linked states below:

USA (AK, AL, AR, AZ, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV), USA+ (PR), CAN (BC, NB, NS, ON, QC)

Synonyms

Symbol Scientific Name
PEHYO Persicaria hydropiperoides (Michx.) Small var. opelousana (Riddell ex Small) J.S. Wilson
POHYP2 Polygonum hydropiperoides Michx. var. psilostachyum H. St. John
PEOP3 Persicaria opelousana (Riddell ex Small) Small
POOP2 Polygonum opelousanum Riddell ex Small
POHYO Polygonum hydropiperoides Michx. var. opelousanum (Riddell ex Small) Riddell ex W. Stone
POHYS Polygonum hydropiperoides Michx. var. strigosum (Small) Stanford
POHYA2 Polygonum hydropiperoides Michx. var. asperifolium Stanford
PEPA42 Persicaria paludicola Small
PEHYE Persicaria hydropiperoides (Michx.) Small var. euronotora (Fernald) C.F. Reed
PEHYB Persicaria hydropiperoides (Michx.) Small var. breviciliata (Fernald) C.F. Reed
POHYD Polygonum hydropiperoides Michx. var. digitatum Fernald
PEHY7 Persicaria hydropiperoides (Michx.) Small
POHYE Polygonum hydropiperoides Michx. var. euronotorum Fernald
POHYB Polygonum hydropiperoides Michx. var. breviciliatum Fernald
PEPE28 Persicaria persicarioides (Kunth) Small
POPE20 Polygonum persicarioides Kunth
POHYB2 Polygonum hydropiperoides Michx. var. bushianum Stanford
POOPA Polygonum opelousanum Riddell ex Small var. adenocalyx Stanford
POHYA Polygonum hydropiperoides Michx. var. adenocalyx (Stanford) Gleason

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Caryophyllidae
Order Polygonales
Family Polygonaceae – Buckwheat family
Genus Polygonum L. – knotweed
Species Polygonum hydropiperoides Michx. – swamp smartweed

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Indiana
Polygonum hydropiperoides var. opelousanum
northeastern smartweed
Threatened
New York
Polygonum hydropiperoides var. opelousanum
Opelousa smartweed
Threatened

Wetland Status

Interpreting Wetland Status

Synonyms

PEHY7  Persicaria hydropiperoides (Michx.) Small

Top Level Regions
Alaska OBL
Arid West OBL
Atlantic and Gulf Coastal Plain OBL
Caribbean OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover