Eddmaps logo

Status of Invasive Plants in Indiana

Total number of exotic species reported: 470

Total number of records in EDDMapS: 29324


Invasive Plants by Category

  • Aquatic - 17 species, 1263 records
  • Conifer Trees - 2 species, 10 records
  • Forbs/Herbs - 270 species, 13532 records
  • Grass or Grasslike - 59 species, 3957 records
  • Hardwood Trees - 36 species, 1057 records
  • Shrub or Subshrub - 48 species, 2128 records
  • Vines - 30 species, 1934 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. reed canarygrass - 433 reports
  2. Japanese stiltgrass - 431 reports
  3. multiflora rose - 419 reports
  4. common reed - 403 reports
  5. garlic mustard - 347 reports
  6. Canada thistle - 331 reports
  7. kudzu - 301 reports
  8. Japanese honeysuckle - 278 reports
  9. Japanese chaff flower - 263 reports
  10. barnyardgrass - 237 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 - 331 species
  2. St. Joseph County - 330 species
  3. Lake County - 326 species
  4. LaPorte County - 315 species
  5. Monroe County - 311 species
  6. Jefferson County - 299 species
  7. Tippecanoe County - 273 species
  8. Newton County - 265 species
  9. Lawrence County - 264 species
  10. Montgomery County - 263 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. Blackford County - 135 species

Report created on February 5, 2016 at 09:51 PM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.