Hi there - we bought a house with a vegetable garden in the back. It was full of collard greens. When we tried to cut them all down (they had been overgrown for years), many of the seeds fell and now we have new microgreens growing. I can recognize the collard greens, but now there are also pointy leaf seedlings. There are so many of them I figured they were also vegetables, but my husband says they are weeds. Please see the photo. I know the rounded leaves are the collard greens.