eddmapslogo

Status of Invasive Plants in Indiana

Total number of exotic species reported: 473

Total number of records in EDDMapS: 28251


Invasive Plants by Category

  • Aquatic - 18 species, 1251 records
  • Conifer Trees - 2 species, 10 records
  • Forbs/Herbs - 271 species, 13348 records
  • Grass or Grasslike - 60 species, 3771 records
  • Hardwood Trees - 35 species, 988 records
  • Shrub or Subshrub - 46 species, 1797 records
  • Vines - 33 species, 1701 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. reed canarygrass - 429 reports
  2. Japanese stiltgrass - 413 reports
  3. multiflora rose - 401 reports
  4. garlic mustard - 332 reports
  5. Canada thistle - 329 reports
  6. Japanese honeysuckle - 256 reports
  7. common reed - 246 reports
  8. barnyardgrass - 237 reports
  9. autumn olive - 229 reports
  10. ladysthumb - 222 reports

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

  1. tree-of-heaven - 92/92 (100%)
  2. purple crown-vetch - 92/92 (100%)
  3. autumn olive - 92/92 (100%)
  4. winter creeper - 92/92 (100%)
  5. English ivy - 92/92 (100%)
  6. Japanese honeysuckle - 92/92 (100%)
  7. multiflora rose - 92/92 (100%)
  8. common periwinkle - 92/92 (100%)
  9. purple deadnettle - 92/92 (100%)
  10. poison-hemlock - 92/92 (100%)

Counties with the most invasive species reported

  1. Porter County - 332 species
  2. St. Joseph County - 328 species
  3. Lake County - 324 species
  4. LaPorte County - 314 species
  5. Monroe County - 308 species
  6. Jefferson County - 300 species
  7. Tippecanoe County - 274 species
  8. Newton County - 267 species
  9. Montgomery County - 264 species
  10. Lawrence County - 264 species

Counties with the least invasive species reported

  1. Benton County - 110 species
  2. Union County - 116 species
  3. Adams County - 122 species
  4. Pulaski County - 125 species
  5. Decatur County - 127 species
  6. Scott County - 127 species
  7. Jay County - 128 species
  8. Martin County - 129 species
  9. Ohio County - 131 species
  10. Dubois County - 132 species

Report created on November 24, 2014 at 04:17 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.