Palhinhaea cernua, synonym Lycopodiella cernua, is a plant in the family Lycopodiaceae, commonly known as the staghorn clubmoss. The Hawaiian name for the plant is wāwaeʻiole, or 'rat's foot'. It has a substantial number of scientific synonyms in several genera. The genus Palhinhaea is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), but not in other classifications which submerge the genus in Lycopodiella.This species has one of the widest distributions within the family, ...