Hydnaceae is a family of fungi that commonly have spiny or toothed fruiting bodies. There are several synonyms for this scientific name, including the hydnum family, tooth fungus family, and spine fungus family, all referencing the characteristic features of this group of fungi. The terms toothed fungi, spine fungi, or hedgehog fungi are commonly used to describe members of this family in the wild. Other scientific names for this family include Polyporaceae and Schizoporaceae, which are based on structural and morphological differences. Regardless of the name used, members of the Hydnaceae family are fascinating fungi with important ecological roles in forest ecosystems.