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Status of Invasive Plants in New Jersey

Total number of exotic species reported: 524

Total number of records in EDDMapS: 20777


Invasive Plants by Category

  • Aquatic - 19 species, 506 records
  • Conifer Trees - 3 species, 14 records
  • Forbs/Herbs - 284 species, 4127 records
  • Grass or Grasslike - 66 species, 1502 records
  • Hardwood Trees - 51 species, 3394 records
  • Shrub or Subshrub - 60 species, 4584 records
  • Vines - 39 species, 3143 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. linden viburnum - 1341 reports
  2. Callery pear (Bradford pear) - 973 reports
  3. sericea lespedeza - 943 reports
  4. Oriental photinia - 784 reports
  5. Japanese angelica tree - 693 reports
  6. English ivy - 606 reports
  7. porcelain-berry - 504 reports
  8. mile-a-minute vine - 496 reports
  9. mimosa - 374 reports
  10. Siebold's arrowwood - 357 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. sericea lespedeza - 19/21 (90%)
  5. bush honeysuckles (exotic) - 19/21 (90%)
  6. purple loosestrife - 19/21 (90%)
  7. cheatgrass - 19/21 (90%)
  8. yellow iris - 19/21 (90%)
  9. Callery pear (Bradford pear) - 19/21 (90%)
  10. European common reed - 19/21 (90%)

Counties with the most invasive species reported

  1. Cape May County - 430 species
  2. Hunterdon County - 430 species
  3. Camden County - 360 species
  4. Somerset County - 337 species
  5. Mercer County - 330 species
  6. Warren County - 322 species
  7. Middlesex County - 316 species
  8. Cumberland County - 316 species
  9. Monmouth County - 295 species
  10. Burlington County - 288 species

Counties with the least invasive species reported

  1. Passaic County - 103 species
  2. Union County - 127 species
  3. Atlantic County - 149 species
  4. Salem County - 174 species
  5. Gloucester County - 180 species
  6. Hudson County - 189 species
  7. Essex County - 212 species
  8. Bergen County - 241 species
  9. Morris County - 260 species
  10. Ocean County - 266 species

Report created on February 9, 2016 at 03:23 PM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.