Synonyms for Leatherleaf (same or very similar meaning)
WordNet sense 1 (stiff leathery-leaved fern of western North America having ovate fronds parted to the midrib):
coast polypody, leathery polypody, Polypodium scouleriWordNet sense 2 (north temperate bog shrub with evergreen leathery leaves and small white cylindrical flowers):
Chamaedaphne calyculataFrom the ODE community, based on WordNetadd/edit