http://www.botany.hawaii.edu/faculty/carr/images/por_ole_fl.jpg Check out the pic, Sven. I'd be pretty sure, too. You could wait for the flower, but it looks like Portulaca spp. I'm betting Portulaca oleracea. P. oleracea will sometimes have larger flowers, sometimes pink or coral flowers, and the spatulate or obovate leaves are somewhat variable in thickness, succulence, and color tinge. It's just that it's ubiquitous, very common throughout the world. Vigorous grower, persistent, hitchhiking, growing in waste places and sidewalk cracks as well as gardens. It's eaten in many cultures. Many cultivars for food crops, too. I eat the ones in my yard. A little lemony, a little mucilaginous, but mostly I just pick leaves and put on salads. Usually it's the stems people are after, though.
Yeah, I saw already at Wikipedia that people eat parts of this plant. Thanks a lot for all the answers in this thread. I appreciate your assistance. Maybe I will gnarl its leafs, too - who knows..?
