Nepenthes of Indochina
N. ampullaria (TH)N. benstonei (TH): N. thai is a synonym.
N. bokorensis (KH)
N. chang (TH, KH)
N. gracilis (TH, KH)
N. holdenii (KH): possibly a synonym of N. chang. The two species grow on the opposite sides of a mountain range, more colonies in between need to be seen to draw conclusions.
N. kerrii (TH, MY): for the moment, I put here all the confusing species from the peninsula: N. andamana, N. kongkandana, N. krabiensis, N. suratensis, N. hirtella, N. bracteosa, N. ridzana.
N. mirabilis var. globosa (TH): the so-called N. sp. Viking from Trang.
N. mirabilis var. mirabilis (TH, KH, LA, VN)
N. orbiculata (TH): the so-called N. sp. Viking from Phang Nga.
N. rosea (TH): the only Nepenthes with a rosette growing on the peduncle.
N. sanguinea (TH)
N. siamensis (TH): mostly related to N. benstonei and N. sanguinea, a new Montanae species from Surat Thani.
N. smilesii (TH, KH, LA, VN): N. anamensis, N. geoffrayi and N. kampotiana are synonyms (see Catalano, 2017 - in Italian).
N. tayninhensis (VN): the hairy plant from Lo Go-Xa Mat thought to be N. thorelii (see Catalano, 2017 - in Italian).
N. thorelii (TH, KH, VN): the glabrous plant from the coasts of continental Indochina thought to be N. kampotiana (see Catalano, 2017 - in Italian).
My field trips
2004: Thailand, January 8 - March 62006: Thailand, January 13 - March 12
2007: Thailand, January 12 - March 12
2008: Thailand, January 14 - March 13
2009: Thailand, August 1 - August 30
2011: Thailand, January 11 - February 8
2012: Laos & Thailand, January 16 - February 19
2013: Cambodia & Thailand, September 3 - October 14
2014: Thailand & Cambodia, September 9 - October 8
2015: Laos & Thailand, September 10 - October 9
2016: Vietnam, September 9 - October 8
2017: Thailand, September 8 - September 28
2019: Cambodia & Thailand, September 8 - October 7
Descriptions
N. anamensis (JPEG) - Macfarlane (1908). In Engler, Das Pflanzenreich IV, III, Heft 36, Leipzig: 39-40.N. andamana (PDF) - Catalano (2010). In Catalano, Nepenthes della Thailandia, Prague: 34.
N. bokor (PDF) - Cheek & Jebb (2009). Nepenthes group Montanae (Nepenthaceae) in Indo-China, with N. thai and N. bokor described as new. In Kew Bulletin 64 (2): 319-325.
N. bokorensis (PDF) - Mey (2009). Nepenthes bokorensis, a new species of Nepenthaceae from Cambodia. In Carniflora Australis 7 (1): 6-15.
N. bracteosa (PDF) - Nuanlaong et al. (2022). Descriptions of two new species of Nepenthes (Nepenthaceae) from Thailand and their phylogenetic analysis based on AFLP technique species confirmation. In Kew Bulletin 77 (1): 105-120.
N. chang (PDF) - Catalano (2010). In Catalano, Nepenthes della Thailandia, Prague: 38.
N. geoffrayi (JPEG) - Lecomte (1909). In Lecomte, Notulae systematicae, Museum national d'histoire naturelle, Laboratoire de phanerogamie: 62.
N. hirtella (PDF) - Nuanlaong et al. (2022). Descriptions of two new species of Nepenthes (Nepenthaceae) from Thailand and their phylogenetic analysis based on AFLP technique species confirmation. In Kew Bulletin 77 (1): 105-120.
N. holdenii (PDF) - Mey et al. (2010). Nepenthes holdenii (Nepenthaceae), a new species of pyrophytic pitcher plant from the Cardamom Mountains of Cambodia. In McPherson, Carnivorous Plants and their Habitats, Volume 2, Redfern Natural History Productions, Poole: 1306-1331.
N. kampotiana (JPEG) - Lecomte (1909). In Lecomte, Notulae systematicae, Museum national d'histoire naturelle, Laboratoire de phanerogamie: 62-63.
N. kerrii (PDF) - Catalano (2010). In Catalano, Nepenthes della Thailandia, Prague: 32.
N. kongkandana (PDF) - Catalano (2015). Nepenthes kongkandana, da ufficiosa ad ufficiale. In AIPC Magazine 37: 4-11.
N. krabiensis (PDF) - Nuanlaong et al. (2016). A new species of Nepenthes (Nepenthaceae) from Thailand. In Thai Forest Bulletin 44 (2): 128-133.
N. mirabilis var. globosa (PDF) - Catalano (2010). In Catalano, Nepenthes della Thailandia, Prague: 40.
N. orbiculata (PDF) - Catalano (2018). Nepenthes orbiculata, una nuova specie da Phang Nga (Thailandia). In AIPC Magazine 50: 32-43.
N. ridzana (PDF) - Latiff et al. (2024). Nepenthes ridzaiana and N. x langkawiensis (Nepenthaceae), a new species and a new nothospecies of pitcher plants from Langkawi Island, Malaysia. In The Malaysian Forester 87 (1): 1-9.
N. rosea (PDF) - Catalano (2014). Nepenthes rosea, una nuova specie dalla Thailandia peninsulare. In AIPC Magazine 36: 24-31.
N. siamensis - Nuanlaong et al. (2026). Nepenthes siamensis (Nepenthaceae), a new species of section Montanae from Surat Thani Province, Peninsular Thailand. In Kew Bulletin 81 (1): 151-159.
N. smilesii (JPEG) - Hemsley (1895). In Kew Bulletin: 116.
N. suratensis (PDF) - Catalano (2010). In Catalano, Nepenthes della Thailandia, Prague: 36.
N. tayninhensis (PDF) - Catalano (2017). Una nuova specie di Nepenthes dal Vietnam. In AIPC Magazine 46: 16-23.
N. thai (PDF) - Cheek & Jebb (2009). Nepenthes group Montanae (Nepenthaceae) in Indo-China, with N. thai and N. bokor described as new. In Kew Bulletin 64 (2): 319-325.
N. thorelii (JPEG) - Lecomte (1909). In Lecomte, Notulae systematicae, Museum national d'histoire naturelle, Laboratoire de phanerogamie: 63-64.