vermont_natural_heritage_inventory's Identifications

Self pollinating P. huronensis like these supposedly warrant further study, as their autogamous nature is most similar to P. hyperborea, a species from which P. huronensis was split. These plants, although very tall, had sometimes bright yellow lips and dark green flowers. Some were intensely fragrant, while others had none at all. The shape of the lip also varied considerably, with some having the typically rounded lip and others being almost straight sided. In the end, the positioning of the anther sacs point to this being P. huronensis, and the other qualities (height, fragrance) make me feel confident that these aren't hybrids or giant P. aquilonis.