Rachel, our walk leader, pointing out the first wild food she spotted: wild lettuce. Like many of the plants we encountered, this one is know for its sedative/narcotic and anti-anxiety qualities. As a tincture, it is a useful sleep aide. You can also cook up the leaves as you would spinach.
This cropped version, while blurry, shows the dandelion-like leaves. I had what I thought was a volunteer lettuce up at the garden, but now I know it is this. There is a row of spikes on the leaves' underside, and a milky sap that oozed out when the stem is broken.
Wild yarrow, which can be used topically for wounds:
Pick and dry the blossoms, then grind to apply on cuts. Infuse the fresh flowers in olive oil or almond oil and use as a cosmetic.