Status of Invasive Plants in Arizona

Total number of exotic species reported: 407

Total number of records in EDDMapS: 41941


Invasive Plants by Category

  • Aquatic - 13 species, 493 records
  • Cactus - 1 species, 3 records
  • Forbs/Herbs - 199 species, 17389 records
  • Grass or Grasslike - 102 species, 16451 records
  • Hardwood Trees - 32 species, 1182 records
  • Palms - 1 species, 1 records
  • Shrub or Subshrub - 25 species, 3328 records
  • Vines - 21 species, 1403 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. buffelgrass - 6295 reports
  2. salsola - 2140 reports
  3. cheatgrass - 2034 reports
  4. common mullein - 1533 reports
  5. Dalmatian toadflax - 1510 reports
  6. redstem filaree - 1469 reports
  7. African mustard - 1305 reports
  8. bull thistle - 1205 reports
  9. camelthorn - 1192 reports
  10. red brome - 1173 reports

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

  1. johnsongrass - 15/15 (100%)
  2. tamarisk - 15/15 (100%)
  3. puncturevine - 15/15 (100%)
  4. field bindweed - 15/15 (100%)
  5. wild oat - 15/15 (100%)
  6. rescuegrass - 15/15 (100%)
  7. bermudagrass - 15/15 (100%)
  8. barnyardgrass - 15/15 (100%)
  9. stinkgrass - 15/15 (100%)
  10. redstem filaree - 15/15 (100%)

Counties with the most invasive species reported

  1. Coconino County - 306 species
  2. Pima County - 285 species
  3. Maricopa County - 260 species
  4. Yavapai County - 236 species
  5. Apache County - 226 species
  6. Cochise County - 225 species
  7. Navajo County - 212 species
  8. Gila County - 198 species
  9. Mohave County - 176 species
  10. Santa Cruz County - 172 species

Counties with the least invasive species reported

  1. La Paz County - 64 species
  2. Yuma County - 98 species
  3. Greenlee County - 105 species
  4. Graham County - 156 species
  5. Pinal County - 165 species
  6. Santa Cruz County - 172 species
  7. Mohave County - 176 species
  8. Gila County - 198 species
  9. Navajo County - 212 species
  10. Cochise County - 225 species

Report created on April 24, 2014 at 05:46 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.



Bugwood Center Developed by The University of Georgia - Center for Invasive Species and Ecosystem Health.
Last updated on Tuesday, December 04, 2012 at 08:59 AM