It is not rare. Not yet. But the blanket fern faces increasing pressure from habitat degradation throughout New Zealand forests. This large fern reaches up to two metres in height, with triangular fronds that create dense thickets blocking paths. It thrives in full sun and poor soils where other plants struggle making it a pioneer species in disturbed landscapes. The species inhabits disturbed ground forest margins and regenerating scrub across New Zealand. It prefers open sites with high light levels and minimal competition. Unlike forest ferns that require shade, blanket fern dominates cleared areas. Fronds are large and triangular, divided into many small leaflets that create a lacy appearance. 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 extensive rhizome 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. The rhizomes spread horizontally underground sending up new fronds at intervals creating vast clonal colonies. Classified as Not Threatened, blanket fern remains widespread throughout New Zealand. Populations are stable in suitable habitat. However the species is sensitive to shade. When forests regenerate and canopy closes blanket fern declines rapidly. Its presence signals intact disturbance regimes and suitable light levels. Conservation efforts focus on managing blanket fern in agricultural settings where it competes with pasture grasses. Control methods include cutting grazing and herbicide application though complete eradication is difficult due to deep rhizome systems.