princesstree

Scrophulariales > Scrophulariaceae > Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud.
Synonym(s): princess tree, royal paulownia

Princesstree is a deciduous tree that grows to 60 ft. (18.3 m) in height and 2 ft. (0.6 m) in diameter. Leaves are opposite, 6 to 12 in. (15.2-30.5 cm) long, heart-shaped (sometimes with three shallow lobes) and hairy on the underside. Flowering occurs in the spring, when showy, 1.5-2 in. (3.7-5 cm) long, tubular, pale-violet flowers develop in upright clusters. The pecan-shaped fruits occur in terminal clusters and split to release thousands of seeds. The thin, fruit capsules persist well into winter. Princesstree usually invades roadsides, stream banks, forest edges and other disturbed areas, but has the ability to invade a wide variety of places. Once established, it is difficult to remove due to prolific seed production and its ability to resprout vigorously. It is native to eastern Asia and was first introduced into North America in the early 1800s for ornamental purposes and as a potential export for carving wood.


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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Seedling(s);
David J. Moorhead, University of Georgia, Bugwood.org
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Tree(s);
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , Bugwood.org
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Foliage; June
James H. Miller, USDA Forest Service, Bugwood.org
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Foliage;
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , Bugwood.org
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Foliage; on a car hood
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , Bugwood.org
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Twig(s)/Shoot(s); June
James H. Miller, USDA Forest Service, Bugwood.org
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Bark;
Chris Evans, River to River CWMA, Bugwood.org
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Flower(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
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Seedling(s); Seedlings growing out of the side of the building.
Allen Bridgman, SCDNR, Bugwood.org
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Flower(s);
James R. Allison, Georgia Department of Natural Resources, Bugwood.org
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Flower(s);
James R. Allison, Georgia Department of Natural Resources, Bugwood.org
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Feature(s); immature fruit cluster and leaves in June
James H. Miller, USDA Forest Service, Bugwood.org
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Fruit(s); June
James H. Miller, USDA Forest Service, Bugwood.org
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Fruit(s); in March
James H. Miller, USDA Forest Service, Bugwood.org
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Seed(s);
David J. Moorhead, University of Georgia, Bugwood.org
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Tree(s);
Chris Evans, River to River CWMA, Bugwood.org
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Plant(s); Growing out of a crack in a roadcut
Chris Evans, River to River CWMA, Bugwood.org
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Feature(s); flowering mature tree located in Auburn University Arboretum in April
James H. Miller, USDA Forest Service, Bugwood.org
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Seedling(s);
Chris Evans, River to River CWMA, Bugwood.org
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Tree(s); Plantation in Irwin county, Georgia. September.
Chuck Bargeron, University of Georgia, Bugwood.org
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Stand; Planted stand
Chris Evans, River to River CWMA, Bugwood.org
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Control;
Nancy Fraley, USDI National Park Service, Bugwood.org
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Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, 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. 3: 189.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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Invasive Reference(s):

Check Invasive.org for most current lists.
  • Alabama - IPC List
  • Connecticut - Noxious Weed Law
  • Georgia - EPPC list
  • Kentucky - EPPC List
  • South Carolina - 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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