Pteridium aquilinum subsp. wightianum, commonly known as Hairy Bracken, Bracken Fern, or Eagle Fern, is a perennial fern that is widespread across various ecosystems, including temperate and tropical regions. It is often found in open woodlands, forest clearings, and heathlands. This species is characterized by its large, triangular fronds that can grow rapidly to a height of 1.5-2.5 feet (0.46-0.76 meters). The fronds are coarse and can be distinguished by their hairy texture, which is more pronounced than in other subspecies of Pteridium aquilinum.

Hairy Bracken is valued for its ability to thrive in difficult conditions and is often used to cover large areas where other plants might struggle. It is also appreciated for its lush greenery and the texture it adds to the landscape. In cultivation, it prefers part shade but can tolerate a range of light conditions. It is adaptable to various soil types, including clay, loam, and sandy soils, provided they have medium to fast drainage. Gardeners should be cautious, as it can spread outside its native range, outcompeting native vegetation and altering ecosystems. It is also known to contain carcinogenic compounds, which can be harmful to livestock if ingested in large quantities.CC BY-SA 4.0