Posted 6/26/2015 14:05 (#4647324 - in reply to #4647126) Subject: RE: What weed is this?
Looks like Wild Parsnip. If the sap is exposed to UV rays from sunlight it will cause blistering. see...http://dnr.wi.gov/topic/invasives/fact/wildparsnip.html for more. Around here the county crews mowing the roads are spreading it far and wide.