This is Purslane, a weed. I knew it was an edible weed and the bathtub behind where I usually grow my salad greens is full of it. I have been feeding it to the chickens. Yesterday on one of my groups someone posted an article from Men's health magazine called 10 foods you're probably not eating but should. One of the foods was Purslane, this weed. The article said, " Purslane has the highest amount of Omega - 3 fats of any edible plant. It also has 10 - 20 times more melatonin an anti- oxidant that inhibits cancer growth. " The lights went on, I realized I couldn't grow salad greens in the heat but here nature was providing me with the perfect salad right in the hottest months. My chickens are probably laying low cholesterol eggs because I have been adding this to their diet.