Selaginella longipinna, commonly known as the electric fern, is a plant in the spike moss family Selaginellaceae. It is endemic to northeastern Queensland, growing in rainforest and closed forest from Cooktown to near Mission Beach, including the Atherton Tablelands. It is a terrestrial plant forming a dense cover to high, often near streams.
This species is listed by the Queensland Department of Environment and Science as least concern., it has not been assessed by the IUCN.