It is not large. Not like its lowland relatives. But small, reaching only one metre in height. The miniature tree fern lives in montane to subalpine forests where cold temperatures limit growth. Its trunk is slender, covered in persistent frond bases. Fronds are small and arching, forming a compact crown. The species inhabits cool moist conditions in montane to subalpine forests and scrub. It prefers well-drained soils where water does not stagnate. Unlike lowland tree ferns that require constant warmth, this species can tolerate brief frosts and snow. 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 alpine soils where other plants struggle. Classified as Not Threatened, miniature tree fern remains widespread throughout the South Island and lower North Island. Populations are stable in suitable habitat. However the species is sensitive to habitat disturbance. When forests are logged or modified, populations decline rapidly. Its presence signals intact montane ecosystems and suitable moisture levels. Conservation efforts focus on protecting remaining native forests from logging and development to maintain these critical high-altitude habitats.