Status of Invasive Plants in New York

Total number of exotic species reported: 674

Total number of records in EDDMapS: 27213


Invasive Plants by Category

  • Aquatic - 23 species, 1522 records
  • Conifer Trees - 6 species, 104 records
  • Forbs/Herbs - 368 species, 12128 records
  • Grass or Grasslike - 92 species, 3424 records
  • Hardwood Trees - 58 species, 1419 records
  • Shrub or Subshrub - 71 species, 2180 records
  • Vines - 41 species, 1393 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. Eurasian water-milfoil - 304 reports
  2. Japanese barberry - 282 reports
  3. multiflora rose - 259 reports
  4. Japanese stiltgrass - 256 reports
  5. garlic mustard - 228 reports
  6. curly-leaved pondweed - 189 reports
  7. tree-of-heaven - 176 reports
  8. redtop - 169 reports
  9. purple loosestrife - 159 reports
  10. barnyardgrass - 157 reports

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

  1. purple loosestrife - 63/62 (102%)
  2. bristlegrass - 60/62 (97%)
  3. bush honeysuckles (exotic) - 58/62 (94%)
  4. Canada bluegrass - 58/62 (94%)
  5. redtop - 58/62 (94%)
  6. reed canarygrass - 56/62 (90%)
  7. sweet vernalgrass - 56/62 (90%)
  8. timothy - 55/62 (89%)
  9. green foxtail - 55/62 (89%)
  10. American mannagrass - 55/62 (89%)

Counties with the most invasive species reported

  1. Suffolk County - 522 species
  2. Ulster County - 456 species
  3. Albany County - 448 species
  4. Orange County - 431 species
  5. Bronx County - 429 species
  6. Nassau County - 380 species
  7. Rockland County - 365 species
  8. Erie County - 364 species
  9. Tompkins County - 358 species
  10. Onondaga County - 353 species

Counties with the least invasive species reported

  1. Fulton County - 65 species
  2. Broome County - 78 species
  3. Cortland County - 87 species
  4. Wyoming County - 100 species
  5. Orleans County - 101 species
  6. Chenango County - 114 species
  7. Steuben County - 117 species
  8. Franklin County - 121 species
  9. Tioga County - 121 species
  10. Allegany County - 124 species

Report created on April 16, 2014 at 05:55 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