| princesstree |
USDA PLANTS Symbol: PATO2 USDA ARS GRIN: 27045 ITIS: 33460 NAPIS: PAQAFBA |
| Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. | |
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Taxonomic Rank: Magnoliopsida: Scrophulariales: Scrophulariaceae |
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| 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. |
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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
- Southeast Exotic Pest Plant Council Invasive Plant Manual - SE-EPPC
- Plant Invaders of Mid-Atlantic Natural Areas - National Park Service and U.S. Fish and Wildlife Service
- Nonnative Invasive Plants of Southern Forests - USDA Forest Service
- Fact Sheet - Pennsylvania Dept. of Conservation and Natural Resources
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Seedling(s); David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , Bugwood.org Additional Resolutions & Image Usage |
 Foliage; June James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , Bugwood.org Additional Resolutions & Image Usage |
 Foliage; on a car hood Pennsylvania Department of Conservation and Natural Resources - Forestry Archive, , Bugwood.org Additional Resolutions & Image Usage |
 Twig(s)/Shoot(s); June James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Bark; Chris Evans, River to River CWMA, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Seedling(s); Seedlings growing out of the side of the building. Allen Bridgman, South Carolina Department of Natural Resources, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); James R. Allison, Georgia Department of Natural Resources, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); James R. Allison, Georgia Department of Natural Resources, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); immature fruit cluster and leaves in June James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); June James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); in March James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); David J. Moorhead, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Chris Evans, River to River CWMA, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Growing out of a crack in a roadcut Chris Evans, River to River CWMA, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); flowering mature tree located in Auburn University Arboretum in April James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Seedling(s); Chris Evans, River to River CWMA, Bugwood.org Additional Resolutions & Image Usage |
 Tree(s); Plantation in Irwin county, Georgia. September. Chuck Bargeron, University of Georgia, Bugwood.org Additional Resolutions & Image Usage |
 Stand; Planted stand Chris Evans, River to River CWMA, Bugwood.org Additional Resolutions & Image Usage |
 Control; Nancy Fraley, USDI National Park Service, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); Steve Hurst, USDA NRCS PLANTS Database, 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. 3: 189. 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:
- Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994.
- Connecticut Invasive Plant Working Group
- Faith Campbell, 1998. Plants that Hog the Garden: Invasive Plants in the United States. Fine Gardening Online
- 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
- Native Plant Society of Oregon, 2002
- New Jersey Department of Agriculture, Division of Plant Industry, 2004
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- North Carolina Division of Parks and Recreation, Department of Environment and Natural Resources, 1998
- Reichard, Sarah. 1994. Assessing the potential of invasiveness in woody plants introduced in North America. University of Washington Ph.D. dissertation.
- Virginia Department of Conservation and Recreation, 1999.
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Alabama Invasive Plant Council
- Connecticut Noxious Weeds
- Georgia Exotic Pest Plant Council Category 1
- Kentucky Exotic Pest Plant Council Significant Threat
- South Carolina Exotic Pest Plant Council Severe Threat
- Tennessee Exotic Pest Plant Council Severe Threat
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