Cannon, C. H., Summers, M., Harting, J. R. & Kessler, P. J. A. (2007). Developing conservation priorities based on forest type, condition, and threats in a poorly known ecoregion: Sulawesi, Indonesia. Biotropica 39: 747–759.
Doorenbos, J. M. (2000). Begonia siccacaudata (Begoniaceae), a new species from Sulawesi. Blumea 45: 399–402.
Doorenbos, J. M., Sosef, S. M. & De Wilde, J. J. F. E. (1998). The sections of Begonia including descriptions, keys and species lists. . Wageningen: Wageningen Agricultural University.
Hughes, M. (2006). Four new species of Begonia (Begoniaceae) from Sulawesi. Edinburgh J. Bot. 63: 191–199.
Hughes, M. (2007). Begonia cladotricha (Begoniaceae): A new species from Laos. Edinburgh J. Bot. 64: 101–105.
Hughes, M. (2008). An annotated checklist of Southeast Asian Begonia. Edinburgh: Royal Botanic Garden Edinburgh.
Irmscher, E. (1914). Die Verteilung der Geschlechter in den Inflorescenzen der Begoniaceen unter Berücksichtigung der morphologischen Verhältnisse. Bot. Jahrb. Syst., Suppl. 50: 556–577.
IUCN (2001). IUCN Red List Categories and Criteria, Version 3.1. IUCN Species Survival Commission. Gland, Switzerland and Cambridge, UK: IUCN.
Kessler, P. J. A., Bos, M. M., Sierra Daza, S. E. C., Kop, A., Willemse, L. P. M., Pitopang, R. & Gradstein, S. R. (2002). Checklist of woody plants of Sulawesi, Indonesia. Blumea, Suppl. 14.
Tebbitt, M. C. (1997). A systematic investigation of Begonia section Sphenanthera (Hassk.) Benth. & Hook. f. Unpublished , University of Glasgow, Scotland, UK.
Tebbitt, M. C. (2003). Taxonomy of Begonia longifolia Blume (Begoniaceae) and related species. Brittonia 55(1): 19–29.
Tebbitt, M. C. & Dickson, J. H. (2000). Amended descriptions and revised sectional assignment of some Asian Begonias (Begoniaceae). Brittonia 52(1): 112–117.
Tebbitt, M. C., Forrest, L. L., Santoriello, A., Clement, W. L. & Swensen, S. M. (2006). Phylogenetic relationships of Asian Begonia, with an emphasis on the evolution of rain-ballist and animal dispersal mechanisms in sections Platycentrum, Sphenanthera and Leprosae. Syst. Bot. 31(2): 327–336.
Thomas, D. C. & Hughes, M. (2008). Begonia varipeltata (Begoniaceae): A new peltate species from Sulawesi, Indonesia. Edinburgh J. Bot. 65: 369–374.