Status of Invasive Plants in New Jersey

Total number of exotic species reported: 518

Total number of records in EDDMapS: 14697


Invasive Plants by Category

  • Aquatic - 18 species, 369 records
  • Conifer Trees - 3 species, 14 records
  • Forbs/Herbs - 280 species, 4051 records
  • Grass or Grasslike - 62 species, 1235 records
  • Hardwood Trees - 50 species, 1954 records
  • Shrub or Subshrub - 57 species, 2295 records
  • Vines - 39 species, 1647 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. linden viburnum - 841 reports
  2. Callery pear (Bradford pear) - 487 reports
  3. Oriental photinia - 358 reports
  4. Japanese angelica tree - 355 reports
  5. porcelain-berry - 301 reports
  6. Siebold's arrowwood - 270 reports
  7. English ivy - 216 reports
  8. mile-a-minute vine - 193 reports
  9. Chinese silvergrass - 152 reports
  10. Japanese wisteria - 151 reports

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

  1. giant foxtail - 21/21 (100%)
  2. bristlegrass - 21/21 (100%)
  3. bush honeysuckles (exotic) - 19/21 (90%)
  4. purple loosestrife - 19/21 (90%)
  5. cheatgrass - 19/21 (90%)
  6. European common reed - 19/21 (90%)
  7. tree-of-heaven - 18/21 (86%)
  8. mile-a-minute vine - 18/21 (86%)
  9. cypress spurge - 18/21 (86%)
  10. Asiatic dayflower - 18/21 (86%)

Counties with the most invasive species reported

  1. Hunterdon County - 419 species
  2. Cape May County - 414 species
  3. Camden County - 339 species
  4. Somerset County - 327 species
  5. Mercer County - 316 species
  6. Warren County - 314 species
  7. Cumberland County - 305 species
  8. Middlesex County - 296 species
  9. Monmouth County - 282 species
  10. Burlington County - 276 species

Counties with the least invasive species reported

  1. Passaic County - 89 species
  2. Union County - 103 species
  3. Atlantic County - 135 species
  4. Salem County - 161 species
  5. Gloucester County - 163 species
  6. Hudson County - 178 species
  7. Essex County - 202 species
  8. Bergen County - 226 species
  9. Morris County - 239 species
  10. Ocean County - 252 species

Report created on April 24, 2014 at 12:11 PM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.



Bugwood Center Developed by The University of Georgia - Center for Invasive Species and Ecosystem Health.
Last updated on Tuesday, December 04, 2012 at 08:59 AM