When you look at S. purpurea in virginia, New Jersey, etc., it seems like a lot of them are "mixed" between S. purpurea ssp. purpurea and S. purpurea ssp. venosa. While I'm not positive of the subspecies of these caroline Co, VA plants, they certainly do resemble S. purpurea ssp. purpurea.
Interesting thing about these plants is that they're starting to produce some really big traps! Many of my other purps. (aside from Roseas) are pretty shy and don't get gigantic outdoors under my conditions in California, but these seem to thrive in our climate.
S. purpurea (ssp. purpurea?) Caroline Co, VA, photos taken 5/12/13:
Here's a different clone:
And it's hard to tell from the picture, but these traps are fairly large:
Overview of the population:
One last shot: