white poplar

Salicales > Salicaceae > Populus alba L.

White poplar is a tree that can grow 40-80 ft. (12.2-24.4 m) 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.


Identification, Biology, Control and Management Resources

  • Weeds of the Week - USDA Forest Service, Northeastern Area, Forest Health Protection

Selected Images from Invasive.org

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Foliage;
Paul Wray, Iowa State University, Bugwood.org
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Foliage;
Richard Old, XID Services, Inc., Bugwood.org
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Foliage;
Paul Wray, Iowa State University, Bugwood.org
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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
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Flower(s);
Paul Wray, Iowa State University, Bugwood.org
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Bark;
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
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Root(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
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Plant(s);
Richard Old, XID Services, Inc., Bugwood.org
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Tree(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
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Tree(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
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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
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Invasive Reference(s):

Check Invasive.org for most current lists.
  • California - Invasive Plant Inventory
  • Connecticut - Noxious Weed Law
  • Kentucky - EPPC List
  • Tennessee - EPPC List
  • Texas - Invasive Plant List
  • Virginia - Invasive Alien Plant Species
  • Mid-Atlantic - EPPC List
  • Invasive Plants: Guide to Identification and the Impacts and Control of Common North American Species
  • Invasive Plants of the Upper Midwest
  • Invasive Plant Atlas of New England


External Links


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