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Populus heterophylla L.
Swamp cottonwood, Swamp poplar, Black cottonwood, Downy poplar
Synonym(s): Populus argentea
USDA Symbol: POHE4
USDA Native Status: L48 (N), CAN (N)
Most recently discovered Canadian tree (April 2003). Found in Bickford Woods south of Sarnia, Ont.
Plant CharacteristicsDuration: Perennial Habit: Tree Leaf:
Green Autumn Foliage:
Bloom InformationBloom Color: White
Bloom Time: Apr
, VA Canada: ON Native Habitat:
Growing ConditionsWater Use: High
Light Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: Low
Soil Description: Clay, Loam
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.
Record Last Modified: 2012-10-20
Research By: TWC Staff