Polystichum ÃÂ potteri, known as Potter's holly fern, is a hybrid between Polystichum braunii and Polystichum acrostichoides. It is named for Henry Potter, a Vermont farmer and botanist.
Potter's holly fern has been documented in Vermont, New Hampshire, New York, Pennsylvania, Maine, Massachusetts, Quebec, Nova Scotia, and New Brunswick.
Though formally described by David Barrington in 1986, this hybrid was first reported in 1940 by Thompson and Coffin.