Native Plants
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Populus heterophylla
Populus heterophylla L.
Swamp Cottonwood, Swamp Poplar, Black Cottonwood, Downy Poplar
Salicaceae (Willow Family)
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.
From the Image Gallery
No images of this plant
Plant Characteristics
Duration: PerennialHabit: Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 100 feet tall, usually shorter.
Leaf: Green
Autumn Foliage: yes
Bloom Information
Bloom Color: White , Green , BrownBloom Time: Apr , May
Distribution
USA: AL , AR , CT , DE , FL , GA , IL , IN , KY , LA , MD , MI , MO , MS , NC , NJ , NY , OH , PA , RI , SC , TN , VACanada: ON
Native Habitat: Forest,Swamp/Marsh
Growing Conditions
Water Use: HighLight Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: Low
Soil Description: Clay, Loam
Benefit
Attracts: BirdsNational Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | OBL | OBL | OBL | OBL |
Web Reference
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 80 - Illinois Wildflowers (2002) John Hilty
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Populus heterophylla in USDA PlantsFNA: Find Populus heterophylla in the Flora of North America (if available)
Google: Search Google for Populus heterophylla
Metadata
Record Modified: 2023-06-07Research By: TWC Staff