Included here is the Pacific island group know as Chuuk (Truk) consisting of 11 islands and a series of 14 outlying atolls and low islands. The main islands are Weno, Tonoas, Uman and Fefan. They lie within the eastern chain of the Caroline Islands and form part of the larger island group of Micronesia.
Of the endemic vascular plants so far recorded there are about 16 species in 16 genera and 11 families but no endemic genera.
Costion, C. M. & Lorence, D. H. 2012. The Endemic Plants of Micronesia: A Geographical Checklist and Commentary. Micronesica, 43: 51-100.
Fosberg, F. R., Sachet, M. H. & Oliver, R. 1979. A Geographical Checklist of the Micronesian Dicotyledonae. Micronesica, 15: 41-295.
Fosberg, F. R. 1984. Phytogeographic comparison of Polynesia and Micronesia. In: Biogeography of the Tropical Pacific (Proceedings of a Symposium). Eds. F. J. Radovsky, P. H. Raven and H. Sohmer. Bishop Museum Special Publication No. 72.