Hogweed that can blind humans found in Calhoun County

The Calhoun County Public Health Department has found the dangerous giant hogweed plant in the county and is asking residents to be cautious.

According to a Monday news release from health officials, the plant was found in Pennfield Township. The plant was completely removed and the site will be monitored by township and county officials for several years.

Hogweed is dangerous because the sap on the leaves, roots, flower heads, seeds and stem hairs can cause blistering and scars if they touch bare skin. Sap can also cause permanent blindness if it gets in the eyes.

Health officials said to wash any skin that contacts the plant in soapy water and to immediately flush affected eyes with water. Medical attention should be sought immediately.

The biennial plant can grow 18 feet high and flowers from late spring to mid-summer. It has dark red or purple spots and bristles on a green stem, and a white flower that looks like Queen Anne's lace or cow parsnip.

If the plant is found, photos of it can be sent to Michigan State University via email at pestid@msu.edu. The Calhoun County Public Health Department can be reached at 969-6341.

Contact Andy Fitzpatrick at 269-966-0697 or afitzpatrick@battlecreekenquirer.com. Follow him on Twitter: @am_fitzpatrick