Recently, the Tennessee Exotic Pest Plant Council's site has been down (for a while now), so I am adding this page for people that would like to know which plants to avoid.
- Severe Threat possess invasive characteristics; spread easily in native plant communities and displace native vegetation
- Significant Threat posses invasive characteristics; not presently considered to spread as easily into native plant communities as Severe Threat
- Lesser Threat spread in or near disturbed areas; not presently considered a threat to native plant communities
- Alert possess invasive characteristics; known to be invasive in similar habitats as those found in Tennesse