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Status of Invasive Plants in Missouri

Total number of exotic species reported: 489

Total number of records in EDDMapS: 30008


Invasive Plants by Category

  • Aquatic - 18 species, 638 records
  • Conifer Trees - 1 species, 1 records
  • Forbs/Herbs - 278 species, 13312 records
  • Grass or Grasslike - 81 species, 3546 records
  • Hardwood Trees - 33 species, 600 records
  • Shrub or Subshrub - 41 species, 2279 records
  • Vines - 35 species, 1416 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. sericea lespedeza - 1033 reports
  2. multiflora rose - 615 reports
  3. Japanese honeysuckle - 300 reports
  4. common mullein - 238 reports
  5. spotted knapweed - 230 reports
  6. shepherd's-purse - 228 reports
  7. yellow sweet-clover - 223 reports
  8. yellow rocket - 219 reports
  9. red sorrel - 214 reports
  10. sulfur cinquefoil - 213 reports

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

  1. common mullein - 114/115 (99%)
  2. common ragweed - 114/115 (99%)
  3. annual ragweed - 114/115 (99%)
  4. shepherd's-purse - 114/115 (99%)
  5. common yarrow - 110/115 (96%)
  6. yellow rocket - 110/115 (96%)
  7. yellow sweet-clover - 108/115 (94%)
  8. bittersweets - 108/115 (94%)
  9. red sorrel - 105/115 (91%)
  10. sulfur cinquefoil - 104/115 (90%)

Counties with the most invasive species reported

  1. St. Louis County - 430 species
  2. Jackson County - 344 species
  3. Boone County - 325 species
  4. Jasper County - 270 species
  5. Cape Girardeau County - 256 species
  6. Greene County - 252 species
  7. Jefferson County - 234 species
  8. Lincoln County - 226 species
  9. Newton County - 220 species
  10. Franklin County - 215 species

Counties with the least invasive species reported

  1. St. Louis city - 10 species
  2. Daviess County - 70 species
  3. Gentry County - 78 species
  4. Shelby County - 80 species
  5. Worth County - 80 species
  6. Mercer County - 86 species
  7. Moniteau County - 88 species
  8. Harrison County - 89 species
  9. Scotland County - 89 species
  10. Lewis County - 92 species

Report created on October 24, 2014 at 03:02 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.