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Status of Invasive Plants in Vermont

Total number of exotic species reported: 430

Total number of records in EDDMapS: 8385


Invasive Plants by Category

  • Aquatic - 15 species, 694 records
  • Conifer Trees - 2 species, 15 records
  • Forbs/Herbs - 269 species, 3864 records
  • Grass or Grasslike - 56 species, 662 records
  • Hardwood Trees - 26 species, 230 records
  • Shrub or Subshrub - 38 species, 1725 records
  • Vines - 22 species, 357 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. European buckthorn - 311 reports
  2. Morrow's honeysuckle - 241 reports
  3. glossy buckthorn - 206 reports
  4. Japanese knotweed - 195 reports
  5. bush honeysuckles (exotic) - 189 reports
  6. purple loosestrife - 183 reports
  7. Japanese barberry - 174 reports
  8. reed canarygrass - 131 reports
  9. coltsfoot - 120 reports
  10. garlic mustard - 110 reports

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

  1. Canada thistle - 14/14 (100%)
  2. bush honeysuckles (exotic) - 14/14 (100%)
  3. purple loosestrife - 14/14 (100%)
  4. common yarrow - 14/14 (100%)
  5. yellow toadflax - 14/14 (100%)
  6. common St. Johnswort - 14/14 (100%)
  7. orange hawkweed - 14/14 (100%)
  8. smooth brome - 14/14 (100%)
  9. hedge bindweed - 14/14 (100%)
  10. barnyardgrass - 14/14 (100%)

Counties with the most invasive species reported

  1. Chittenden County - 379 species
  2. Windham County - 324 species
  3. Rutland County - 323 species
  4. Windsor County - 321 species
  5. Addison County - 290 species
  6. Caledonia County - 284 species
  7. Bennington County - 274 species
  8. Orange County - 201 species
  9. Washington County - 201 species
  10. Franklin County - 196 species

Counties with the least invasive species reported

  1. Grand Isle County - 136 species
  2. Essex County - 145 species
  3. Lamoille County - 164 species
  4. Orleans County - 189 species
  5. Franklin County - 196 species
  6. Orange County - 201 species
  7. Washington County - 201 species
  8. Bennington County - 274 species
  9. Caledonia County - 284 species
  10. Addison County - 290 species

Report created on September 2, 2014 at 07:37 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.