The one on the left is common wild purslane, yes? But the one on the right is a little different. It has a rounder leaf and the stem doesn't look as red. They both grow in a mat on the ground and come up wild where ever the ground is bare. They both come up as weeds in the garden. Also I can't find either in the cow pasture so it seems the cows eat both. Are they both purslane and are they both edible?