Terrestrial Invasive Species

Terrestrial invasives come in many forms including plants, animals, insects, fungi and diseases.  They affect the health of our forests, agricultural lands, parks, and more.  DCIST has created the following list of terrestrial plants and animals that threaten Door County’s natural environments and economy.  A summary of the “Top 15” Invasive Plants in Door County (with pictures) can be  downloaded at the bottom of this page.  For steps that you can take to prevent the spread of terrestrial species, visit our What You Can Do and Play, Clean, Go pages.

Terrestrial Invasive Plants to Know

Garlic Mustard

Alliaria petiolata

View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Chris Evans, University of Illinois, Bugwood.org

Common Buckthorn

Rhamnus cathartica
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Control Recommendations
Photo: Paul Wray, Iowa State University, Bugwood.org

Bell's Honeysuckle

Lonicera x bella

View More Photos - Identification Video
Explore Facts - Control Recommendations

Photo: Rob Routledge, Sault College, Bugwood.org

Tartarian Honeysuckle

Lonicera tatarica
View More Photos - Identification Video
Explore Facts - Control Recommendations

Photo: Rob Routledge, Sault College, Bugwood.org

Dame's Rocket

Hesperis matronalis
View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Woodland Forget-me-not

Myosotis sylvatica
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Photo: Caleb Slemmons, National Ecological Observatory Network, Bugwood.org

Spotted Knapweed

Centaurea maculosa
View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Rob Routledge, Sault College, Bugwood.org

Japanese Barberry

Berberis thunbergii
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Control Recommendations
Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Leafy Spurge

Euphorbia esula
View More Photos - Identification Video
Explore Facts  - Control Recommendations
Photo: Chris Evans, University of Illinois, Bugwood.org

Cypress Spurge

Euphorbia cyparissias
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Control Recommendations
Photo: Kari Hagenow, The Nature Conservancy

Common & Cut-Leaf Teasel

Dipsacus fullonum & D. laciniatus
View Common Photos - View Cut-Leaf Photos
Identification Video - Explore Facts
Control Recommendations
Photo: David Cappaert, Bugwood.org

Autumn Olive

Elaeagnus umbellata
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Control Recommendations
Photo: Nancy Loewenstein, Auburn University, Bugwood.org

Russian Olive

Elaeagnus angustifolia
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Control Recommendations
Photo: Jan Samanek, Phytosanitary Administration, Bugwood.org

Oriental Bittersweet

Celastrus orbiculatus
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Control Recommendations
Photo: Chris Evans, University of Illinois, Bugwood.org

Common Tansy

Tanacetum vulgare
View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Jan Samanek, Phytosanitary Administration, Bugwood.org

Wild Parsnip

Pastinaca sativa

View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Biennial Thistles

Cirsium vulgare, Carduus acanthoides
View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Britt Slattery, US Fish and Wildlife Service, Bugwood.org

Black Swallow-wort

Vincetoxicum nigrum
View More Photos - Identification Video
Explore Facts - Control Recommendations
Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Houndstongue

Cynoglossum officinale
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Control Recommendations
Photo: Mary Ellen (Mel) Harte, Bugwood.org

Crown Vetch

Coronilla varia
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Control Recommendations
Photo: Dan Tenaglia, Missouriplants.com, Bugwood.org

Helleborine Orchid

Epipactis helleborine
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Control Recommendations
Photo: Rob Routledge, Sault College, Bugwood.org

Terrestrial Invasive Animals to Know

Emerald Ash Borer

Agrilus planipennis
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Photo: Kari Hagenow, The Nature Conservancy

Gypsy Moth

Lymantria dispar
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Photo: John Ghent, John Ghent, Bugwood.org

Beech Bark Disease

Nectria coccinea
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Photo: Joseph OBrien, USDA Forest Service, Bugwood.org

Asian Lady Beetle

Harmonia axridis
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Photo: Russ Ottens, University of Georgia, Bugwood.org

Oak Wilt

Ceratocystis fagacearum
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Photo: Joseph OBrien, USDA Forest Service, Bugwood.org

Mute Swan

Cygnus olor
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Photo: Jim Occi, BugPics, Bugwood.org

Download Terrestrial Factsheets & Publications