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Knox County Soil and Water Conservation District

Top Ten Invasive Plants in Knox County

  1. Asian Bush Honeysuckles (Lonicera tatarica, L. maackii, L. x bella, & L. morrowii)
  2. Japanese Honeysuckle (Lonicera japonica)
  3. Wintercreeper (Euonymous fortunei)
  4. Poison Hemlock (Conium maculatum)
  5. Autumn Olive (Elaeagnus umbellata)
  6. Multiflora Rose (Rosa multiflora)
  7. Tree of Heaven (Ailanthus altissima)
  8. Non-native Thistles (Musk, Bull, and Canada) (Carduus nutans, Cirsium vulgare, & C. arvense)
  9. Johnson Grass (Sorghum halepense)
  10. Burning Bush (Euonymous alatus)
Asian Bush Honeysuckle
Japanese Honeysuckle
Wintercreeper
Poison Hemlock
Autumn Olive
Multiflora Rose
Tree of Heaven
Bull Thistle
Johnson Grass
Burning Bush

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