I photograph most of the weeds I find. Many of the Universities have weed ID online & smartphone apps.
After research, I record the info in my plant database (Google Spreadsheet).
Sometimes I remember the name of the weed for a few days:)
I would support a weed forum.
And encourage members to submit weed photos to the ATP plant database.
A few weeks ago after a morning of weed killing, I finally stopped to look up the name of a most prevalent weed.
"Chamaesyce maculata 2014, Spotted Spurge, Small spotted sandmat, cam ee sigh see mak-yuh-LAH-tuh, Prostrate Annual Weed,HA, Spot in middle of leaf, W1
A prostrate summer annual that forms dense mats up to 16 inches (or more) in diameter. All parts of the plant emit a milky sap (irritant to some) when broken. Spotted spurge is found in the eastern half of the U.S. plus California and Oregon. However, some maps show it throughout the U.S. and parts of Canada. Abundant in SE Michigan for sure. aka Euphorbia maculata."
