It is beginning of spring here in Las Vegas, and my mom is having her yard worked on for the first time since..oh, in the back yard it has probably been a YEAR....no herbicides or anyting have been used. Her side yard has rocks and i went over there and there are, what look like, dandelions. But they are growing like a JUNGLE. They are HUGE. they were all the way up to my knees. Most the plants had not flowered (we've only had a few warm days, but today it was 70 F!) but a few plants did have what looked VERY much like dandelion flowers. They are not thistles either, as they have no spines. I've included several photos. Can dandelion get THIS big?