Coral sponge is a type of sponge found within the wilderness of Xanth, popular for its medicinal purposes.
Coral sponge is a popular item for treating wounds due to its magic. It is able to absorb agony and spread healing comfort. It is one of numerous plants with similar magic. One advantage that made coral sponges stand out is their mobile ability. They would not die if they were picked and could easily survive on land. It is believed that they came out of the waters at about the same time many corals did.
- A Spell for Chameleon, Chapter 1