Meanwhile I read other descriptions of the plant. Especially in older books is emphasized succulent appearance of the plant. Now I'm more sure of identifying plant above.
Jay if you can, I think it would be useful to display photos and the topic of family Gentianaceae.
The thread "Gentian family - Family Gentianaceae" in
Wildflowers forum
Even if identification is still questionable.
I don't found yet such photographs of the Sabatia arenicola showing succulent character of the plants, so good like yours.
Here a picture of Herbarium Specimen
http://eol.org/data_objects/17... (click on image to see bigger)
