we examined the native ferns that grew in the southwestern Pennsylvania region, and throughout the Wilson farm property.

“Native plants include all kinds of plants from mosses, lichen and ferns to wildflowers, shrubs and trees. Many non-native plants are also invasive and crowd out our native plant species.” ...

The types of native species included in this table are trees, shrubs, perennials, ground covers, ferns, grasses, sedges, rushes, and vines. Table last updated March of 2025.