Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Search native plant database:
Polygonum hydropiperoides Michx.
Synonym(s): Persicaria hydropiperoides, Persicaria hydropiperoides var. breviciliata, Persicaria hydropiperoides var. euronotora, Persicaria hydropiperoides var. opelousana, Persicaria opelousana, Persicaria paludicola, Persicaria persicarioides, Polygonum hydropiperoides var. adenocalyx, Polygonum hydropiperoides var. asperifolium, Polygonum hydropiperoides var. breviciliatum, Polygonum hydropiperoides var. bushianum, Polygonum hydropiperoides var. digitatum, Polygonum hydropiperoides var. euronotorum, Polygonum hydropiperoides var. opelousanum, Polygonum hydropiperoides var. psilostachyum, Polygonum hydropiperoides var. strigosum, Polygonum opelousanum, Polygonum opelousanum var. adenocalyx, Polygonum persicarioides
USDA Symbol: POHY2
Swamp Smartweed is a member of the buckwheat family (family Polygonaceae) which includes mostly herbs, sometimes shrubs or vines, rarely trees, with small flowers in racemes, spike-like clusters, or in heads. Stems commonly have swollen nodes. (The family name refers to this, deriving from Greek words meaning many knees.) There are about 40 genera and 800 species, chiefly in north temperate regions. Rhubarb and Buckwheat are sources of food, and a few species are grown as ornamentals.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf:
Dark Green Fruit:
Bloom InformationBloom Color: Green
, WV Canada: NB
Growing ConditionsWater Use: Medium
Light Requirement: Sun
CaCO3 Tolerance: High
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Nueces River Authority
- Uvalde, TX
Record Last Modified: 2012-06-30
Research By: TWC Staff