white poplar
Populus alba L.
Description from Invasive.org
- Appearance
- Populus alba 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.
- Foliage
- 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
- Flowers are inconspicuous and develop in slim, cylindrical flower clusters (catkins) before the leaves develop.
- Fruit
- Fruit are small, hairy seed pods that are spread by wind.
- Ecological Threat
- Branches are susceptible to breakage when under stress, such as heavy snow or ice. Trees produce prolific rootsprouts. Populus alba is native to Eurasia and grows best in full sun.
Resources
- Weeds Gone Wild: Alien Plant Invaders of Natural Areas - Plant Conservation Alliance
- Weed of the Week - USDA Forest Service
Selected Images from Invasive.org
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Tree(s)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Foliage
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Plant(s) 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
Zelimir Borzan, University of Zagreb, Bugwood.org
Additional Resolutions & Image Usage
Tree(s)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Bark
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
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
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage
Plant(s) Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 587.
USDA NRCS PLANTS Database , USDA NRCS PLANTS Database, Bugwood.org
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USDA NRCS PLANTS Database , USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage