It is not rare. Not yet. But the fine-leaved parsley fern faces increasing pressure from habitat degradation throughout New Zealand alpine regions. This small fern reaches about 15 centimetres in height, with narrow finely divided fronds that grow in tight clumps. The fronds are coloured dark green, fading to brown as they age. A distinctive midrib runs the length of each frond, providing structural support. The species inhabits rocky crevices and cliff faces in alpine areas. It prefers exposed sites with minimal soil and high winds. Unlike lowland ferns that require sheltered conditions, this species has adapted to harsh maritime environments. Fronds are narrow and lance-shaped, growing in tight clumps from rock crevices. Spores are produced on the underside of fertile fronds in linear sori. These spores are released into the air, drifting on strong winds along the coastline. Diet consists of nutrients obtained through photosynthesis and absorption from rainwater and rock weathering. The fern does not consume organic matter directly but rather extracts minerals from water trickling over rock surfaces. This lithophytic lifestyle allows it to thrive in nutrient-poor environments where other plants cannot establish. Classified as Not Threatened, fine-leaved parsley fern remains widespread throughout South Island alpine regions. Populations are stable in suitable rocky habitat. However the species is sensitive to habitat disturbance. When rock faces are modified for construction or quarrying, populations decline rapidly. Its presence signals intact geological features and suitable moisture levels. Conservation efforts focus on protecting remaining rocky outcrops from development and maintaining natural hydrological regimes.