| white poplar |
USDA PLANTS Symbol: POAL7 USDA ARS GRIN: 29358 ITIS: 22451 NAPIS: PEOABBA |
| Populus alba L. | |
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Taxonomic Rank: Magnoliopsida: Salicales: Salicaceae |
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White poplar is a tree that can grow 40-80 ft. (12.2-24.4m) tall and 40-50 ft. (12.2-15.2 m) wide. The bark on young trees is smooth and greenish white becoming gray and wrinkled, as trees age. The leaves resemble maple leaves, but the topside of leaves are shiny, dark green while the underside is bright white and hairy. Leaves are 2-4 in. (5.1-10.2 cm) long. Flowers are inconspicuous and develop in slim, cylindrical flower clusters (catkins) before the leaves develop. Fruit are small, hairy seed pods that are spread by wind. Branches are susceptible to breakage when under stress, such as heavy snow or ice. Trees produce prolific rootsprouts. White poplar is native to Eurasia and grows best in full sun. |
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Identification, Biology, Control and Management Resources
- Weed of the Week - USDA Forest Service
- Invasive Plant Atlas of New England - University of Connecticut
- Weeds Gone Wild: Alien Plant Invaders of Natural Areas - Plant Conservation Alliance
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Foliage; Paul Wray, Iowa State University, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Paul Wray, Iowa State University, Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; 1 - 2. Branchlet with male catkins (a - c). - 2. Branchlet with female catkins (d - f). - 3. Branchlet with short shoot and ripe (a - c) fruit-catkins (fruits are capsules opening with two valves; seeds are without endosperm, furnished with tufts of cotton-like white hair). - 4. A leader with palmately lobed leaves. - 5. Winter-branchlet. - 6. Seedling with cotyledons and first ordinary leaves. After Hempel & Wilhelm, 1889. Photos and explanations from the book: Zelimir Borzan. "Tree and Shrub Names in Latin, Croatian, English, and German, with synonyms", University of Zagreb, 2001. Zelimir Borzan, University of Zagreb, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Paul Wray, Iowa State University, Bugwood.org Additional Resolutions & Image Usage |
 Bark; Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Root(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 587. USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
Taxonomic References:
- USDA, NRCS. 2001. The PLANTS Database, Version 3.1, National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Invasive Listing Sources:
- City of Ann Arbor Michigan Parks and Recreation
- Connecticut Invasive Plant Working Group
- Faith Campbell, 1998. Plants that Hog the Garden: Invasive Plants in the United States. Fine Gardening Online
- Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Maryland Department of Natural Resources, 1994
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Pacific Northwest Exotic Pest Plant Council, 1998
- Pennypack Ecological Restoration Trust, Pennsylvania.
- Reichard, Sarah. 1994. Assessing the potential of invasiveness in woody plants introduced in North America. University of Washington Ph.D. dissertation.
- Vermont Department of Environmental Conservation,
- Virginia Department of Conservation and Recreation, 1999.
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Connecticut Noxious Weeds
- Kentucky Exotic Pest Plant Council Significant Threat
- South Carolina Exotic Pest Plant Council Significant Threat
- Tennessee Exotic Pest Plant Council Significant Threat
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