Included here is the Pacific island of Pohnpei (formerly Ponape) which is one of the Senyavin Islands in the larger Caroline Islands group. These in turn form part of the island group of Micronesia.
Of the endemic vascular plants so far recorded there are about 48 species and varieties in 38 genera and 22 families but no endemic genera. This list has recently been revised by Costion & Lorence (2012).
Costion, C. M. & Lorence, D. H. 2012. The Endemic Plants of Micronesia: A Geographical Checklist and Commentary. Micronesica, 43: 51-100.
Herrera, K., Lorence, D. H., Flynn, T. & Balick, M. J. 2010. Checklist of the vascular plants of Pohnpei, Federated States of Micronesia with local names and uses. Allertonia, 10: 1-204.
Lorence, D. H. & T. Flynn. 2009. Checklist of the vascular plants of Pohnpei. In: The Ethnobotany of Pohnpei: Plants, People and Island Culture. Ed. Michael J. Balick. University of Hawaii Press & New York Botanical Garden.