Status of Invasive Plants in Hawaii

Total number of exotic species reported: 478

Total number of records in EDDMapS: 3172


Invasive Plants by Category

  • Aquatic - 5 species, 42 records
  • Cactus - 1 species, 8 records
  • Conifer Trees - 1 species, 1 records
  • Forbs/Herbs - 178 species, 971 records
  • Grass or Grasslike - 98 species, 538 records
  • Hardwood Trees - 83 species, 481 records
  • Shrub or Subshrub - 58 species, 272 records
  • Vines - 50 species, 283 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. coco yam, wild taro - 17 reports
  2. swamp morningglory - 14 reports
  3. waterhyacinth - 13 reports
  4. big chickweed - 12 reports
  5. buffelgrass - 12 reports
  6. parrot feather milfoil - 10 reports
  7. Brazilian waterweed - 9 reports
  8. barnyardgrass - 9 reports
  9. paragrass - 9 reports
  10. melaleuca - 8 reports

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

  1. English ivy - 4/5 (80%)
  2. melaleuca - 4/5 (80%)
  3. kudzu - 4/5 (80%)
  4. giant reed - 4/5 (80%)
  5. coral ardisia - 4/5 (80%)
  6. waterhyacinth - 4/5 (80%)
  7. Brazilian waterweed - 4/5 (80%)
  8. air-potato - 4/5 (80%)
  9. largeleaf lantana - 4/5 (80%)
  10. tall fescue - 4/5 (80%)

Counties with the most invasive species reported

  1. Maui County - 494 species
  2. Hawaii County - 473 species
  3. Honolulu County - 437 species
  4. Kauai County - 411 species

Counties with the least invasive species reported

  1. Kauai County - 411 species
  2. Honolulu County - 437 species
  3. Hawaii County - 473 species
  4. Maui County - 494 species

Report created on May 18, 2013 at 05:59 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