It's not often that my fieldwork results in finding a new native globally rare species to add to the flora of Massachusetts, but it happened in May. ID confirmed by Vermont moonwort expert Art Gilman, author of the New Flora of Vermont. (Arthur Haines agreed as well).

Sticking my neck way out to go to this species and I sure wish I had dissected a seed capsule, and taken better photos, but i would think by plant height alone and rhizomatous growth this would key to this species. Any thoughts or corrections are welcome.