Mixed in with mats of Andreaea rothii (and a few other spp) on the edges of seepy conglomerate bedrock on a mountaintop.
Observation for the Andreaea: https://www.inaturalist.org/observations/173998287
In shallow water of a vernal pool, in a calcareous region.
Very large population. Some plants at risk of being trampled
Growing in Calcareous Montane Cliff Community, Bucks Co.
Well over 100 individuals in bloom