Adiantum viridimontanum
Adiantum viridimontanum, commonly known as Green Mountain maidenhair fern, is a rare fern found only in outcrops of serpentine rock in New England and Eastern Canada. It is one of four species endemic to serpentine in eastern North America and is considered globally threatened due to its habitat restrictions. It thrives on sunny, disturbed areas where ultramafic rock is covered...