Gotta agree with Ben here those wesite photos look like rotundifolia. My brevifolia are only about an 1" across. They are also in bud right now so I'll try to get some pics for you too. They have done well indoors under lights since I got them last spring as babies. I've heard they are annuals but they seem to be growing well so far. I'd cut the flowers off half just in case to help them preserve energy. Check our Bob Z's photofinder for some excellent pics. (You might as well make it a favorite while you at it.) I'm addicted
Mine came from N.C. too, although they were from EBAY !! From the guys ditch in front of his house.