Ohio
Approximately one-fourth of the plant species known to occur in Ohio originate from other parts of the continent or the world, meaning they are not native to the state. Most non-native plant species are not invasive in natural areas. Of the more than 700 non-native plants in Ohio, fewer than 100 are known to be problems in natural areas. But, those that are invasive can cause extensive economic damage and do immeasurable harm to our natural resources and the natural heritage of our state.
– Ohio DNR
Top Reported Species
Brown marmorated stink bug | 353 |
Amur honeysuckle | 69 |
Invasive bittersweet | 65 |
Autumn olive | 58 |
Japanese knotweed | 58 |
Narrow-leaved cat-tail | 57 |
Eurasian watermilfoil | 54 |
Winged burningbush | 54 |
Glossy buckthorn | 52 |
White perch | 50 |
Recent Observations
- Poison hemlock in Erie County, OH on August 01, 2023
- English ivy in Lorain County, OH on August 25, 2023
- Brown marmorated stink bug in Lorain County, OH on August 25, 2023
- Brown marmorated stink bug in Hamilton County, OH on December 30, 2023
- Autumn olive in Montgomery County, OH on November 13, 2023
Prohibited Noxious Weeds
- Arrowleaf false pickerelweed
- Common salvinia
Injurous Aquatic Invasives
- Amur sleeper
- Crucian carp
- Diploid Grass carp – White amur
- Eastern banded killifish
- Eurasian minnow
- European perch
- Large-scale silver carp
- Marron
- Nile perch
- Prussian carp
- Roach
- Snakeheads
- Tubenose goby
- Walking catfish