Grammitis nudicarpa is a fern in the family Polypodiaceae.
The plant is a very small epiphytic fern. It has a short rhizome with dark brown, pointed scales. Its simple fronds combine a short stipe with a narrowly oblanceolate lamina 2–8 cm long and 0.3–0.8 cm wide.[1]
The fern is endemic to Australia’s subtropical Lord Howe Island in the Tasman Sea; it is confined to the densely shaded summit areas of Mounts Lidgbird and Gower.[1]