Illinois Poisonous Plants poster

              Species List
This poster was made possible by:
Illinois Department of Natural Resources
Division of Education
Division of Natural Heritage
Illinois Poison Center
The species shown on this poster are poisonous plants commonly found in Illinois. They were selected for inclusion by staff at the
Illinois Poison Center as representatives of plants most frequently involved in poisoning incidents in our state. There are many
other poisonous plants growing naturally in Illinois and cultivated in homes and gardens. Caution should be used when selecting
plants for the home or garden. Although toxicity varies in poisonous plants, children, people with developmental disabilities and pets
are at risk of eating large amounts of the plant(s). By ingesting more of the plant(s), the level of toxicity may be increased. Always
wash your hands thoroughly after touching any of these plants, fresh or dried.
For more information and an expanded list of toxic plants, visit
www.IllinoisPoisonCenter.org.
For free poison prevention education training and materials, go to
www.IllinoisPoisonCenter.org/outreach.
If you have questions and/or need treatment advice, contact the
Illinois Poison Center at 1-800-222-1222.
The Illinois Poison Center encourages people to learn the names of plants in and around their home. Label each plant with the correct
common and botanical names. Consult a local greenhouse, plant nursery or florist to identify unknown plants. This information is
critical in an emergency when it can be difficult to identify plants from a verbal description given over the telephone. Providing the
correct plant name can help ensure that accurate treatment advice is dispensed quickly.
nightshade Solanum spp.
mother-in-law’s tongue or snake plant Sansevieria spp.
jimsonweed Datura spp.
morning-glory Ipomoea spp. American holly Ilex opaca
lily-of-the-valley Convallaria majalis
Toxic Wild Plants
jimsonweed Datura spp.
nightshade Solanum spp.
poison hemlock Conium maculatum
poison ivy Toxicodendron radicans
pokeweed Phytolacca americana
Toxic Garden/Landscaping Plants
azalea Rhododendron spp.
Canada yew Taxus canadensis
delphinium or larkspur Delphinium spp.
foxglove Digitalis purpurea
lily-of-the-valley Convallaria majalis
morning-glory Ipomoea spp.
rhododendron Rhododendron spp.
Toxic House and Holiday Plants
American holly Ilex opaca
dieffenbachia Dieffenbachia spp.
mother-in-law’s tongue
or snake plant Sansevieria spp.
philodendron Philodendron spp.
© 2002 Steven J. Baskauf
© 2008 Rob Curtis, The Early Birder © 2008 Rob Curtis, The Early Birder
© 2002 Steven J. Baskauf
© Dr. John Meade, Weed Scientist Emeritus, Rutgers Cooperative Extension © 2008 Adele Hodde, Illinois Department of Natural Resources
Canada yew Taxus canadensis
© 2008 Adele Hodde, Illinois Department of Natural Resources
poison hemlock Conium maculatum azalea Rhododendron spp.
© 2003 Steven J. Baskauf
poison ivy Toxicodendron radicans
© 2008 Adele Hodde, Illinois Department of Natural Resources
pokeweed Phytolacca americana
© 2008 Michael Haddock
foxglove Digitalis purpurea
© Mark W. Skinner @ USDA-NRCS PLANTS Database
Vegetation only photo © 2008 Adele Hodde, Illinois Department of Natural Resources
In bloom photo © 2008 Richard Day/Daybreak Imagery
rhododendron Rhododendron spp.
philodendron Philodendron spp.
© 2008 Stefan Bloodworth, Lady Bird Johnson Wildflower Center
© 2008 Adele Hodde, Illinois Department of Natural Resources
dieffenbachia Dieffenbachia spp.
delphinium or larkspur Delphinium spp.
© 2008 Adele Hodde, Illinois Department of Natural Resources
© 2008 Adele Hodde, Illinois Department of Natural Resources
I l l i n o i s
azalea, vegetation only
azalea, in bloom
®
Poisonous
Plants