Pohole, also known as hō'i'o is an edible fiddlehead fern eaten in Hawaiian cuisine salad. The salads are made the unfurled fronds of a Diplazium esculentum fern (also known as Athyrium esculentum). The ferns grow in wet areas of shady valleys. The fern species Diplazium esculentum is believed to have been introduced and naturalized in Hawaii and was first reported collected in 1910. The fern also has medicinal uses.
- N_ Kua'_ina: Living Hawaiian Culture by Davianna McGrego pages 110, 133
-  Hawai_i's Ferns and Fern Allies by Daniel Dooley Palmer page 125
- CRC World Dictionary of Medicinal and Poisonous Plants: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology (5 Volume Set) by Umberto Quattrocchi CRC Press, May 3, 2012 – Science – 3960 pages page 1439