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Status of Invasive Plants in New Jersey

Total number of exotic species reported: 521

Total number of records in EDDMapS: 19343


Invasive Plants by Category

  • Aquatic - 19 species, 458 records
  • Conifer Trees - 3 species, 14 records
  • Forbs/Herbs - 285 species, 4150 records
  • Grass or Grasslike - 67 species, 1429 records
  • Hardwood Trees - 50 species, 3153 records
  • Shrub or Subshrub - 58 species, 4202 records
  • Vines - 39 species, 2651 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. linden viburnum - 1326 reports
  2. Callery pear (Bradford pear) - 907 reports
  3. sericea lespedeza - 904 reports
  4. Oriental photinia - 759 reports
  5. Japanese angelica tree - 634 reports
  6. English ivy - 526 reports
  7. porcelain-berry - 437 reports
  8. mile-a-minute vine - 376 reports
  9. mimosa - 350 reports
  10. Siebold's arrowwood - 331 reports

Top Ten Widespread Invasive Plants (by number of positive counties)

  1. giant foxtail - 21/21 (100%)
  2. bristlegrass - 21/21 (100%)
  3. tree-of-heaven - 19/21 (90%)
  4. bush honeysuckles (exotic) - 19/21 (90%)
  5. purple loosestrife - 19/21 (90%)
  6. cheatgrass - 19/21 (90%)
  7. European common reed - 19/21 (90%)
  8. English ivy - 18/21 (86%)
  9. sericea lespedeza - 18/21 (86%)
  10. Japanese honeysuckle - 18/21 (86%)

Counties with the most invasive species reported

  1. Cape May County - 423 species
  2. Hunterdon County - 422 species
  3. Camden County - 355 species
  4. Somerset County - 331 species
  5. Mercer County - 320 species
  6. Warren County - 314 species
  7. Middlesex County - 310 species
  8. Cumberland County - 310 species
  9. Monmouth County - 289 species
  10. Burlington County - 281 species

Counties with the least invasive species reported

  1. Passaic County - 91 species
  2. Union County - 110 species
  3. Atlantic County - 142 species
  4. Salem County - 167 species
  5. Gloucester County - 171 species
  6. Hudson County - 178 species
  7. Essex County - 203 species
  8. Bergen County - 231 species
  9. Morris County - 241 species
  10. Ocean County - 254 species

Report created on July 28, 2014 at 02:16 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.