Not sure about this ID. Growing in mesic to slightly xeric conifer forest.
Helping with the watering
125+ flowering stems counted in this small Rich Sloping Fen of about 0.1 acre. Clay substrate, slightly marly partially covered with a perhaps 10 cm thick organic layer.
Relatively low diversity fen. Climax ecotype was probably Sugar Maple dominated, with a small wet open area of sensitive fern & Typha latifolia at the top of the fen. Subsequently put into hay, then left fallow.
I had initially thought this was Spiranthes cernua based on appearance however recently learned that genetics were obtained from this location and identified as S. arcisepala. Looking forward to new information from this site when available.
Location is nearest town. Just a note for conservation agencies that might view this, it is a known population. I will not share coordinates.