Status of Invasive Plants in Wyoming
Total number of exotic species reported: 260
Total number of records in EDDMapS: 9233
Invasive Plants by Category
- Aquatic - 2 species, 12 records
- Forbs/Herbs - 155 species, 4822 records
- Grass or Grasslike - 48 species, 951 records
- Hardwood Trees - 19 species, 184 records
- Shrub or Subshrub - 12 species, 118 records
- Vines - 13 species, 175 records
Top Ten Abundant Invasive Plants (by number of reports)
- musk thistle - 572 reports
- leafy spurge - 410 reports
- yellow toadflax - 250 reports
- spotted knapweed - 235 reports
- Canada thistle - 230 reports
- Dyer's woad - 169 reports
- dalmatian toadflax - 88 reports
- common mullein - 86 reports
- houndstongue - 78 reports
- perennial pepperweed - 78 reports
Top Ten Widespread Invasive Plants (by number of positive counties)
- spotted knapweed - 23/23 (100%)
- musk thistle - 23/23 (100%)
- Canada thistle - 23/23 (100%)
- common mullein - 23/23 (100%)
- bull thistle - 23/23 (100%)
- leafy spurge - 23/23 (100%)
- field bindweed - 23/23 (100%)
- Russian knapweed - 23/23 (100%)
- creeping bentgrass - 23/23 (100%)
- smooth brome - 23/23 (100%)
Counties with the most invasive species reported
- Albany County - 201 species
- Park County - 199 species
- Fremont County - 194 species
- Crook County - 175 species
- Teton County - 174 species
- Sheridan County - 169 species
- Laramie County - 162 species
- Carbon County - 159 species
- Goshen County - 153 species
- Platte County - 152 species
Counties with the least invasive species reported
- Uinta County - 99 species
- Niobrara County - 106 species
- Campbell County - 114 species
- Sweetwater County - 115 species
- Hot Springs County - 118 species
- Sublette County - 124 species
- Weston County - 127 species
- Johnson County - 131 species
- Big Horn County - 135 species
- Washakie County - 136 species
Report created on June 19, 2013 at 08:39 PM
by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.
