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Status of Invasive Plants in South Dakota

Total number of exotic species reported: 255

Total number of records in EDDMapS: 6753


Invasive Plants by Category

  • Aquatic - 9 species, 210 records
  • Forbs/Herbs - 164 species, 3086 records
  • Grass or Grasslike - 44 species, 892 records
  • Hardwood Trees - 12 species, 146 records
  • Shrub or Subshrub - 10 species, 170 records
  • Vines - 13 species, 299 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. Canada thistle - 329 reports
  2. leafy spurge - 146 reports
  3. common mullein - 120 reports
  4. field bindweed - 107 reports
  5. musk thistle - 96 reports
  6. bull thistle - 88 reports
  7. crested wheatgrass - 86 reports
  8. curly dock - 84 reports
  9. curly dock - 84 reports
  10. wild buckwheat - 77 reports

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

  1. bull thistle - 66/66 (100%)
  2. field bindweed - 64/66 (97%)
  3. Russian knapweed - 64/66 (97%)
  4. leafy spurge - 63/66 (95%)
  5. musk thistle - 61/66 (92%)
  6. curly dock - 46/66 (70%)
  7. curly dock - 46/66 (70%)
  8. crested wheatgrass - 43/66 (65%)
  9. common yarrow - 41/66 (62%)
  10. narrowleaf dock - 40/66 (61%)

Counties with the most invasive species reported

  1. Pennington County - 211 species
  2. Lawrence County - 161 species
  3. Union County - 156 species
  4. Clay County - 155 species
  5. Custer County - 148 species
  6. Fall River County - 130 species
  7. Codington County - 114 species
  8. Brookings County - 107 species
  9. Lincoln County - 104 species
  10. Roberts County - 100 species

Counties with the least invasive species reported

  1. Miner County - 18 species
  2. Haakon County - 18 species
  3. Edmunds County - 21 species
  4. Ziebach County - 22 species
  5. Clark County - 22 species
  6. Sully County - 22 species
  7. Moody County - 26 species
  8. McCook County - 26 species
  9. Potter County - 27 species
  10. Jerauld County - 27 species

Report created on November 24, 2014 at 07:17 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.