With the sudden interest in gentians (what timing!); here is Gentiana linearis photographed in southern Vermont (8/18/09), where it is considered rare. First time seeing it: it is found only in the U.P. in Michigan (4 counties as of this summer thanks to the illustrious Bradford Slaughter). Looks a heck of a lot like G. andrewsii (incidentally also rare in VT) to me, the main difference in G&C's key being the leaves and are not "scabrous-ciliolate" (at least not at 16X).