Pinesap is also related, only a lot shorter. There is one variety in the southern mountains and in the Piedmont which flowers twice. In late winter from middle of snowshow season-April and then in the early fall Sept-Oct. The spring flower is fragrant, the fall flower is odorless. I got that info from Audubon. I've not seen it here. But, I did see Indian Pipe today. It is related. It had ripened fruit, which is a capsule, and it lost it's ghostly white. It turns up when ripe. It was in spruce-fir woods. Another flower I saw today was turtlehead (a white orchid).