Status of Invasive Plants in Idaho
Total number of exotic species reported: 351
Total number of records in EDDMapS: 108601
Invasive Plants by Category
- Aquatic - 5 species, 1744 records
- Conifer Trees - 1 species, 2 records
- Forbs/Herbs - 212 species, 90329 records
- Grass or Grasslike - 62 species, 1976 records
- Hardwood Trees - 29 species, 1131 records
- Shrub or Subshrub - 17 species, 1723 records
- Vines - 20 species, 2103 records
Top Ten Abundant Invasive Plants (by number of reports)
- leafy spurge - 17832 reports
- Canada thistle - 11046 reports
- spotted knapweed - 9435 reports
- rush skeletonweed - 7672 reports
- Scotch thistle - 5784 reports
- musk thistle - 4790 reports
- hoary cress - 4476 reports
- yellow toadflax - 3554 reports
- diffuse knapweed - 2997 reports
- Russian knapweed - 2797 reports
Top Ten Widespread Invasive Plants (by number of positive counties)
- Canada thistle - 44/44 (100%)
- spotted knapweed - 44/44 (100%)
- field bindweed - 44/44 (100%)
- Scotch thistle - 44/44 (100%)
- cheatgrass - 44/44 (100%)
- poison-hemlock - 43/44 (98%)
- Russian knapweed - 43/44 (98%)
- hoary cress - 43/44 (98%)
- musk thistle - 42/44 (95%)
- leafy spurge - 42/44 (95%)
Counties with the most invasive species reported
- Idaho County - 286 species
- Latah County - 272 species
- Ada County - 248 species
- Kootenai County - 232 species
- Nez Perce County - 232 species
- Bonner County - 225 species
- Canyon County - 195 species
- Washington County - 184 species
- Bannock County - 179 species
- Adams County - 173 species
Counties with the least invasive species reported
- Jerome County - 48 species
- Minidoka County - 58 species
- Camas County - 64 species
- Lincoln County - 72 species
- Oneida County - 86 species
- Jefferson County - 86 species
- Payette County - 88 species
- Teton County - 90 species
- Franklin County - 93 species
- Power County - 100 species
Report created on May 18, 2013 at 07:42 AM
by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.
