Walkers brush against it constantly. Not because it is rare. Because it grows everywhere damp and dark. The gully fern forms dense thickets along stream banks and in shaded gullies, its large triangular fronds creating a green wall that blocks paths and shelters insects. It reaches up to one metre in height, with soft hairy stems that distinguish it from similar species. Pirepire. The Māori name refers to this common fern. Early Māori used the young fiddleheads as a food source, though they required careful preparation to remove bitterness. The starchy rhizomes were also consumed during times of scarcity. Settlers found the fern less palatable but recognised its value as ground cover in shady gardens. Today the species serves as an indicator of forest health. Its presence signals intact riparian zones and suitable moisture levels. The gully fern inhabits damp shaded areas in native forests throughout New Zealand. It prefers moist fertile soils with high humidity, thriving where rainfall is consistent and drainage is good. Fronds are large and triangular, divided into many small leaflets that create a lacy appearance. The stems are covered in soft hairs, giving them a distinctive texture. Spores are produced on the underside of fertile fronds in small round clusters called sori. These spores are released into the air, drifting on wind currents until they land on suitable substrate. Diet consists of nutrients obtained through photosynthesis and absorption from soil via shallow root systems. The fern does not consume organic matter directly but rather extracts minerals and water from surrounding substrate. This autotrophic lifestyle allows it to thrive in nutrient-poor soils where other plants struggle. Classified as Not Threatened, the gully fern remains widespread throughout New Zealand. Populations are stable in suitable forest habitat. However the species is sensitive to habitat disturbance. When forests are logged or modified, populations decline rapidly. Its presence signals intact mycorrhizal networks and healthy forest ecosystems. Conservation efforts focus on protecting remaining native forests from logging and development to maintain these critical underground connections.