Outdoor Hazards in Wisconsin: A Guide to Insects, Plants, and Wildlife

Scott R. Craven, Phillip J. Pellitteri, Mark J. Renz Revised:  1/15/2010 Item number:  G3564 Wisconsin’s bountiful natural resources make it an ideal place for outdoor recreation. Most plants and creatures you encounter won’t hurt you, but timber rattlesnakes, yellow jackets, wild parsnip, and others can be troublesome. This guide will help you recognize, avoid, and […]

Herbicide Damage

Herbicide damage is any adverse, undesired effect on a plant that is caused by exposure of that plant to a pesticide designed for weed control. Learn symptoms and more in this factsheet.

Common Weed Seedlings of the North Central States

This detailed, illustrated guide will help you identify 54 of the most common problem weed species in the north central region of the United States. It is divided into two main sections: grass and grass-like weeds and broadleaf weeds.

Creeping Charlie

Creeping Charlie (Glechoma hederacea) is an herbaceous perennial plant that spreads by seed and by creeping stems (called stolons) that grow along the ground. With this factsheet, learn how to identify and control this common lawn and garden weed.

Controlling Creeping Charlie, Gleochoma hederaceae

It doesn’t matter what common name you call it, Glechoma hederaceae is a pest in lawns and gardens. This European perennial plant in the mint family – often called creeping Charlie – thrives in moist, shady spots and is difficult to eradicate because it can spread by runners and seeds. To learn more about how to control this creeping nuisance, read this article…

Common Purslane, Portulaca oleracea

Portulaca oleracea is a low-growing plant with succulent leaves. This annual grows quickly to produce a mat of tart-flavored edible leaves. Because of its fast growth, prolific seed production, and ability to survive in all types of soils, most people think of it as a pest, but some consider it a vegetable. To learn more about this edible weed, read this article…

Wild Parsnip

Wild parsnip (Pastinaca sativa) is an aggressive Eurasian member of the carrot family that grows in sunny areas and tolerates dry to wet soil types. Very invasive, it can overtake roadsides and fields. Contact with this plant can cause severe skin blisters and permanent scarring. Learn how to identify and control this invasive plant in this factsheet.

Queen Anne's Lace, Daucus carota

This time of year the fields and roadsides are filled with airy white flowers. Those are the flowers of an introduced plant that is related to one of our common garden vegetables. Learn more about this nearly-ubiquitous weed by reading this article…

Support Extension