↑U. S. Fish and Wildlife Service, 1991Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for 26 Plants From the Waianae Mountains, Island of Oahu, Hawaii Federal Register, vol. 56, no. 209
↑ 7.07.1Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2014). "Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 26 Mayo 2014.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)