Status of Invasive Plants in New York

Total number of exotic species reported: 507

Total number of records in EDDMapS: 21545


Invasive Plants by Category

  • Aquatic - 11 species, 254 records
  • Conifer Trees - 4 species, 98 records
  • Forbs/Herbs - 262 species, 9755 records
  • Grass or Grasslike - 75 species, 2992 records
  • Hardwood Trees - 58 species, 1441 records
  • Shrub or Subshrub - 56 species, 1684 records
  • Vines - 37 species, 1105 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. Japanese barberry - 257 reports
  2. Nepalese browntop - 237 reports
  3. multiflora rose - 180 reports
  4. garlic mustard - 174 reports
  5. tree-of-heaven - 171 reports
  6. oriental bittersweet - 136 reports
  7. redtop - 111 reports
  8. Canada bluegrass - 110 reports
  9. reed canarygrass - 108 reports
  10. green foxtail - 108 reports

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

  1. purple loosestrife - 62/62 (100%)
  2. Canada bluegrass - 58/62 (94%)
  3. redtop - 57/62 (92%)
  4. reed canarygrass - 56/62 (90%)
  5. sweet vernalgrass - 56/62 (90%)
  6. timothy - 55/62 (89%)
  7. green foxtail - 55/62 (89%)
  8. American mannagrass - 55/62 (89%)
  9. barnyardgrass - 54/62 (87%)
  10. quackgrass - 54/62 (87%)

Counties with the most invasive species reported

  1. Suffolk County - 422 species
  2. Ulster County - 371 species
  3. Orange County - 369 species
  4. Albany County - 357 species
  5. Bronx County - 347 species
  6. Nassau County - 324 species
  7. Rockland County - 316 species
  8. Rensselaer County - 301 species
  9. Erie County - 294 species
  10. Tompkins County - 279 species

Counties with the least invasive species reported

  1. Fulton County - 48 species
  2. Cortland County - 65 species
  3. Broome County - 66 species
  4. Orleans County - 78 species
  5. Wyoming County - 80 species
  6. Chenango County - 83 species
  7. Steuben County - 84 species
  8. Tioga County - 92 species
  9. Allegany County - 93 species
  10. Franklin County - 93 species

Report created on June 29, 2011 at 06:35 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 Thursday, June 02, 2011 at 10:16 AM