| Japanese spiraea | USDA PLANTS Symbol: SPJA U.S. Nativity: Exotic Habit: Shrub or Subshrub |
| Spiraea japonica L. f. |
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Taxonomic Rank: Magnoliopsida: Rosales: Rosaceae |
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| Native Range: Japan (REHD); | |
Japanese spiraea is a small, deciduous shrub up to 6 ft. (1.8 m) tall that invades a variety of habitats throughout the eastern United States. The alternate leaves are oval to lance shaped, toothed along the margins and 1-3 in. (2.5-7.6 cm) long. In late spring white to pink flowers occur in clusters at the tips of branches. Japanese spiraea invades a variety of habitats including fields, forests, stream banks and many disturbed areas. Once established, it can form dense stands which displace native vegetation and close open areas. Japanese spiraea is native to eastern Asia and was first introduced into the United States around 1879 as an ornamental. |
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Identification, Biology, Control and Management Resources
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| Selected Images from Invasive.org | View All Images at Invasive.org |
 Foliage; James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Stem(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Great Smoky Mountains National Park Resource Management Archive, USDI National Park Service, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); James H. Miller, USDA Forest Service, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Nancy Fraley, USDI National Park Service, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Nancy Fraley, USDI National Park Service, Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 246. USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
| EDDMapS Distribution: This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org |
 State(s) Where Reported invasive. Based on state level agency and organization lists of invasive plants from WeedUS database. |
| U.S. National Parks where reported invasive: |
| Great Smoky Mountains National Park (North Carolina & Tennessee) |
