Mystery weed ID

August 10, 2012 10:20 AM

I need help identifying this plant: photo 1 / photo 2. It's growing on the edge of a parking lot in Largo, MD, USA.
posted by ryanshepard to Science & Nature (3 answers total)

Some type of Rumex, commonly called Sorrel.
posted by humboldt32 at 10:31 AM on August 10, 2012

Might be a variety of Butterfly Weed - Asclepias tuberosa - hard to tell without open flowers, but you might check it out on Google Images.
posted by aryma at 11:42 PM on August 10, 2012

If it a milkweed (Asclepias) it will ooze white latex-like sap if you break the stem. Just don't lick your fingers afterwards, the stuff is toxic. aryma is right though, if you can find any in flower, your odds of an ID go way up. If you're too late for flowers, mature fruits might also help.
posted by agentofselection at 10:04 AM on August 11, 2012