All of these plants are listed as exotic invasive species on the South Carolina Exotic Pest Plant Council List.
SEVERE THREAT-known to pose a severe threat to the natural areas of SC.
SIGNIFICANT THREAT-invasive exotic species are established in natural areas; but may not be as widespread or difficult to manage as Severe Threat species.
EMERGING THREAT-invasive exotic species found in SC or adjacent states, in limited infestations that can be managed.
ALERT-exotic plant species known to pose a severe threat to natural areas in adjacent states with a limited distribution in South Carolina.