I got this from east tx growing in a ditch of sandy loam. The leaves are not spiny or prickly at all but it has a very spindly growth habit and is about 1.5' tall. It flowered twice in late Spring to early Summer and has just continued to grow since blooming. It looks like a poppy to me but I cannot find any others that look like this.
I am pretty sure is a Primrose, Oenothera, but not sure of the species, this one looks close;
http://wildflower.org/gallery/result.php?id_image=15625
Josephine.
Yup that's it! Thanks Josephine
You are welcome Michael.
