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Status of Invasive Plants in Minnesota

Total number of exotic species reported: 398

Total number of records in EDDMapS: 141827


Invasive Plants by Category

  • Aquatic - 13 species, 28564 records
  • Conifer Trees - 2 species, 13 records
  • Forbs/Herbs - 254 species, 56443 records
  • Grass or Grasslike - 54 species, 5088 records
  • Hardwood Trees - 23 species, 1540 records
  • Shrub or Subshrub - 30 species, 11260 records
  • Vines - 20 species, 1062 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. reed canarygrass - 26727 reports
  2. Canada thistle - 10392 reports
  3. spotted knapweed - 7103 reports
  4. wild parsnip - 6744 reports
  5. European buckthorn - 6599 reports
  6. common tansy - 3370 reports
  7. oxeye daisy - 3001 reports
  8. bush honeysuckles (exotic) - 2960 reports
  9. smooth brome - 2817 reports
  10. white sweetclover - 2815 reports

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

  1. Canada thistle - 87/87 (100%)
  2. yellow sweet-clover - 87/87 (100%)
  3. smooth brome - 86/87 (99%)
  4. European buckthorn - 85/87 (98%)
  5. leafy spurge - 85/87 (98%)
  6. reed canarygrass - 85/87 (98%)
  7. western salsify - 85/87 (98%)
  8. bull thistle - 84/87 (97%)
  9. black medic - 83/87 (95%)
  10. lambsquarters - 82/87 (94%)

Counties with the most invasive species reported

  1. St. Louis County - 301 species
  2. Hennepin County - 264 species
  3. Ramsey County - 228 species
  4. Houston County - 220 species
  5. Washington County - 219 species
  6. Clay County - 204 species
  7. Stearns County - 201 species
  8. Winona County - 199 species
  9. Blue Earth County - 197 species
  10. Goodhue County - 197 species

Counties with the least invasive species reported

  1. Red Lake County - 63 species
  2. Rock County - 65 species
  3. Watonwan County - 68 species
  4. Stevens County - 70 species
  5. Grant County - 72 species
  6. Yellow Medicine County - 74 species
  7. Pennington County - 74 species
  8. Meeker County - 75 species
  9. Murray County - 76 species
  10. Cottonwood County - 78 species

Report created on July 28, 2014 at 04:33 PM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.