This little plant has been growing in my yucca tree pot for about half a year. It's been growing very slowly, and the aphids are very enthusiastic about attempting to eat it. Anyone recognize this? http://www.flickr.com/photos/58876519@N05/5934651381/in/photostream/lightbox/
I don't think it is, the leaves of the plant you suggested seem a bit more narrow. It's a very soft plant, almost delicate. It doesn't seem to have to hardiness of a typical weed. It needs lots of water and doesn't like strong sunlight. I was just browsing random weeds and I found two that look very similar: White Nettle and Common Amaranth: http://www.agroatlas.ru/en/content/weeds/Amaranthus_retroflexus/ http://www.leederbyshire.com/Flowers/Wild-Flower.asp?name=White+Dead-nettle what do you think?