Chequamegon-Nicolet National Forest - Non-Native Invasive Species List


	Chequamegon-Nicolet N.F. Natural Resources Non-Native Invasive Species NNIS List

Chequamegon-Nicolet National Forest

Non-Native Invasive Species List

CATEGORY A: The list below represents species of immediate concern. They are documented on the Forest and are currently invading native plant communities. Control is warranted.

Common Name	Scientific Name	Listed As
Leafy Spurge	Euphorbia esula	Noxious*
Canada Thistle	Cirsium arvense	Noxious*
Purple Loosestrife	Lythrum salicaria	Nuisance*
Buckthorns	Rhamnus cathartica and Frangula alnus	n/a
Asiatic honeysuckles	Lonicera tartarica, L. morrowii, and L. x bella	n/a
Garlic mustard	Alliaria petiolata	n/a
Spotted knapweed	Centaurea biebersteinii	n/a
Japanese barberry	Berberis thunbergii	n/a
European marsh thistle	Cirsium palustre	n/a
Wild parsnip	Pastinaca sativa	n/a
Oriental bittersweet	Celastrus orbiculata	n/a
Eurasian water milifoil	Myrioplyllum spicatum	n/a
Reed canary grass	Phalaris arundinacea	n/a
Curly Pondweed	Potamogeton crispus	n/a
Japanese knotweed	Polygonum cuspidatum	n/a
Autumn olive	Elaeagnus umbellata	n/a
Common Reed	Phragmites australis	n/a
Forget-me-not	Myosotis arvensis	n/a
Bull thistle	Cirsium vulgare	n/a
Siberian Pea-shrub	Caragana arborescens	n/a

*Noxious = Prohibited by Wisconsin law, must be destroyed
*Nuisance = may not be sold, distributed, planted, or cultivated

CATEGORY B: The list below is of species known to be invasive and present within the forest, with invasion in natural communities uncertain. They will be monitored.

Common Name	Scientific Name
Bishop's Gout-weed	Aegopodium podagraria
Black Locust	Robinia pseudoacacia
St. John's-wort	Hypericum perforatum
Common tansy	Tanacetum vulgare
Purple Crown vetch	Coronilla varia
Narrow-leaved cattail	Typha angustifolia
Brittlestem hempnettle	Galeopsis tetrahit
Butter-and-eggs	Linaria vulgaris
Common Mullein	Verbascum thapsus

Page last updated Oct. 10, 2008

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