database: Nepenthaceae of North America Update; Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010)
database: The PLANTS Database; National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA. http://plants.usda.gov
CD-ROM: Checklist of CITES Species Part 1 CITES species index; UNEP-WCMC (Comps.) 2011. Checklist of CITES species (CD-ROM). CITES Secretariat, Geneva, Switzerland, and UNEP-WCMC, Cambridge, United Kingdom. ISBN 2-88323-030-7. Available online at http://www.cites.org/eng/resources/pub/checklist11/index.html or from CITES Secretariat, Chemin des Anémones, 1219 Châtelaine, Genève, Switzerland
Cheek, M., and M. Jebb 2001-01-01. Flora Malesiana, Series I; Seed Plants. Nationaal Herbarium Nederland. Leiden, The Netherlands. iv+157. 90-71236-49-8. .
Arx, Bertrand von, Jan Schlauer, and Madeline Groves 2001-01-01. CITES Carnivorous Plant Checklist. Royal Botanic Gardens (Kew). Kew, London, England. vii+93. 1 84246 035 8. Available online at http://www.kew.org/conservation/CITES_Checklists/CITESCarnivorousPlantChecklist.pdf.
Jebb, Matthew, and Martin Cheek 1997-01-01. Blumea, vol. 42, no. 1. . . 1-106. . .
David F. Mitchell, ITIS Data Development Specialist: CITES: Appendix II except the species included in Appendix I, adopted at the 15th meeting of the Conference of the Parties (Doha, 2010)
