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Species Information

Below is an alphabetical listing (by scientific name) of some of the invasive species in our region. (Click on the column header to sort by that column).

Tier 4 - Widespread species are common in this region as well as in most surrounding areas.
Tier 3 - Established species are relatively widespread throughout the region but may not be present in neighboring regions.
Tier 2 - Emerging species are not yet widespread in the region but may be locally common.
Tier 1 - Threat species not yet reported in the region.

Species (Scientific)sort descending Species (Common) Status Type Websites
Corbicula fluminea Asian Clam Tier 2 - Emerging Global Invasive Species Database, University of WI SeaGrant, NYIS, USGS NAS
Corydalis incisa Purple keman, Incised fumewort Tier 2 - Emerging
Corydalis solida Spring fumewort Tier 5 - Watch
Crassula helmsii Swamp crop, Pygmyweed Tier 1 - Threat
Cynanchum louiseae (C. nigrum, Vincetoxicum nigrum) Black swallow-wort Tier 3 - Established National Park Service
Cynanchum rossicum Pale swallow-wort Tier 2 - Emerging GISP/ISSP
Cyprinus carpio Common carp Tier 3 - Established Global Invasive Species Database, USGS Nonindigenous Aquatic Species
Cytisus scoparius Scotch broom Tier 2 - Emerging
Didymosphenia geminata Didymo Tier 1 - Threat Global Invasive Species Database, CABI, New York DEC
Digitalis grandiflora Yellow foxglove Tier 5 - Watch
Digitalis purpurea Purple foxglove Tier 5 - Watch
Dioscorea oppositifolia Chinese yam Tier 2 - Emerging GISP/ISSP
Dipsacus fullonum Fuller's teasel, Wild teasel Tier 4 - Widespread The Ohio State University, United States Department of Agriculture, Invasive Plant Atlas, Invasive Species Compendium
Dipsacus laciniatus Cut-leaf teasel Tier 2 - Emerging GoBotany
Dreissena polymorpha Zebra Mussel Tier 3 - Established GISP/ISSP
Egeria densa Brazilian elodea Tier 1 - Threat GISP/ISSP , GoBotany, IPANE, Global Invasive Species Database, Department of Ecology, State of Washington, Center for Aquatic and Invasive Plants, IFAS
Elaeagnus angustifolia Russian olive Tier 2 - Emerging
Elaeagnus umbellata Autumn Olive Tier 4 - Widespread GISP/ISSP , ISSG, United States Forest Service
Elsholtzia ciliata Crested late summer mint Tier 2 - Emerging
Eragrostis curvula Weeping lovegrass Tier 2 - Emerging

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