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Status of Invasive Plants in Ohio

Total number of exotic species reported: 568

Total number of records in EDDMapS: 33037


Invasive Plants by Category

  • Aquatic - 16 species, 1466 records
  • Conifer Trees - 3 species, 15 records
  • Forbs/Herbs - 324 species, 17246 records
  • Grass or Grasslike - 73 species, 2417 records
  • Hardwood Trees - 53 species, 1848 records
  • Shrub or Subshrub - 59 species, 2295 records
  • Vines - 37 species, 1673 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. multiflora rose - 427 reports
  2. garlic mustard - 297 reports
  3. purple loosestrife - 275 reports
  4. creeping yellow loosestrife, creeping Jenney - 255 reports
  5. Japanese honeysuckle - 234 reports
  6. ladysthumb - 221 reports
  7. bittersweet nightshade - 216 reports
  8. tree-of-heaven - 212 reports
  9. reed canarygrass - 208 reports
  10. Eurasian water-milfoil - 207 reports

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

  1. tree-of-heaven - 88/88 (100%)
  2. multiflora rose - 88/88 (100%)
  3. common mullein - 88/88 (100%)
  4. annual bluegrass - 88/88 (100%)
  5. bittersweets - 88/88 (100%)
  6. common dandelion - 88/88 (100%)
  7. Japanese barberry - 87/88 (99%)
  8. smooth brome - 87/88 (99%)
  9. Queen Anne's lace, wild carrot - 87/88 (99%)
  10. moth mullein - 87/88 (99%)

Counties with the most invasive species reported

  1. Cuyahoga County - 459 species
  2. Lake County - 445 species
  3. Franklin County - 377 species
  4. Portage County - 368 species
  5. Erie County - 359 species
  6. Summit County - 355 species
  7. Ashtabula County - 352 species
  8. Lorain County - 347 species
  9. Highland County - 343 species
  10. Geauga County - 333 species

Counties with the least invasive species reported

  1. Mercer County - 116 species
  2. Putnam County - 117 species
  3. Paulding County - 120 species
  4. Shelby County - 125 species
  5. Hardin County - 126 species
  6. Henry County - 137 species
  7. Union County - 139 species
  8. Hancock County - 143 species
  9. Marion County - 145 species
  10. Allen County - 149 species

Report created on December 19, 2014 at 05:10 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.