Nepenthes albomarginata is a tropical pitcher plant native to Borneo, Peninsular Malaysia, and Sumatra.
Nepenthes gracilis, or the slender pitcher-plant, is a common lowland pitcher plant that is widespread in the Sunda region. It has been recorded from Borneo, Cambodia, Peninsular Malaysia, Singapore, Sulawesi, Sumatra, and Thailand. The species has a wide altitudinal distribution of 0 to 1100 m above sea level, although most populations are found below 100 m and plants are rare above 1000 m. Despite being a widespread plant, natural hybrids between N. gracilis and other species are quite rare.
Nepenthes reinwardtiana is a tropical pitcher plant native to Borneo and Sumatra and to a number of smaller surrounding islands including Bangka, Natuna, Nias, and Siberut. Although some sources have included Peninsular Malaysia and Singapore within the range of this species, these records appear to be erroneous.
Nepenthes bicalcarata, also known as the fanged pitcher-plant, is a tropical pitcher plant endemic to northwestern Borneo, Indonesia. It is a myrmecophyte noted for its mutualistic association with a species of ant, Camponotus schmitzi. As an ant-fed plant it lacks many of the features that characterise the carnivorous syndrome in Nepenthes, including viscoelastic and highly acidic pitcher fluid, the waxy zone of the pitcher interior, and possibly even functional digestive enzymes.
Nepenthes fusca, or the dusky pitcher-plant, is a tropical pitcher plant endemic to Borneo. It is found throughout a wide altitudinal range and is almost always epiphytic in nature, primarily growing in mossy forest.
Nepenthes × alisaputrana, or the leopard pitcher-plant, is a hybrid of two well-known Nepenthes pitcher plant species: N. burbidgeae and N. rajah. The plant is confined to Mount Kinabalu in Sabah, Borneo.
Nepenthes northiana, or Miss North's pitcher-plant, is a tropical pitcher plant endemic to Borneo, where it grows at elevations ranging from 0 to 500 m above sea level. The specific epithet northiana honours the English botanic illustrator Marianne North, who first depicted the species. Nepenthes northiana is one of the most famous Nepenthes, and its discovery in the latter half of the 19th century contributed to Sarawak's reputation as a land of spectacular exotic plants.
Nepenthes hurrelliana is a tropical pitcher plant endemic to Borneo, where it has been recorded from northern Sarawak, southwestern Sabah, and Brunei. It is of putative hybrid origin; its two original parent species are thought to be N. fusca and N. veitchii. A thick indumentum of rusty-brown hairs covers the entire plant, a characteristic presumably inherited from the latter.
Nepenthes murudensis, or the Murud pitcher-plant, is a tropical pitcher plant endemic to Mount Murud in Borneo, after which it is named. It is of putative hybrid origin: its two original parent species are thought to be N. reinwardtiana and N. tentaculata.
Nepenthes campanulata, the bell-shaped pitcher-plant, is a tropical pitcher plant native to Borneo. It has also been reported from Palawan, the Philippines, though further field work is needed to confirm this identification.
Nepenthes faizaliana is a tropical pitcher plant endemic to the limestone cliffs of Gunung Mulu National Park in Sarawak, Borneo. It is thought to be most closely related to N. boschiana.
Nepenthes mapuluensis, the Mapulu pitcher-plant, is a species of tropical pitcher plant native to East Kalimantan, Borneo. It is known only from a restricted geographical range and is listed as Endangered on the IUCN Red List.
Nepenthes muluensis, or the Mulu pitcher-plant, is a tropical pitcher plant endemic to Borneo. It grows in highland habitats at elevations of 1700 to 2400 m above sea level.
Ch'ien C. Lee is a photographer and botanist specialising in the carnivorous plant genus Nepenthes. Lee has described several new Nepenthes species, including N. baramensis, N. chaniana, N. gantungensis, N. glandulifera, N. jamban, N. lingulata, N. palawanensis, N. pitopangii, N. platychila, and N. harauensis. Lee also described the natural hybrid N. × bauensis.
Nepenthes × cantleyi is a natural hybrid involving N. bicalcarata and N. gracilis. It is quite rare outside Brunei, despite its parent species being more widespread throughout Borneo.
Nepenthes × cincta is a natural hybrid between N. albomarginata and N. northiana.
Nepenthes × sarawakiensis is a natural hybrid involving N. muluensis and N. tentaculata. It is quite a rare plant as one of its parent species, N. muluensis, is only known from several isolated mountains.
Nepenthes of Borneo is a monograph by Charles Clarke on the tropical pitcher plants of Borneo. It was first published in 1997 by Natural History Publications (Borneo), and reprinted in 2006. Clarke describes it as "primarily an ecological monograph".
Pitcher-Plants of Borneo is a monograph by Anthea Phillipps and Anthony Lamb on the tropical pitcher plants of Borneo. It was first published in 1996 by Natural History Publications (Borneo), in association with the Royal Botanic Gardens, Kew and the Malaysian Nature Society. An updated and much expanded second edition was published in 2008 as Pitcher Plants of Borneo, with Ch'ien Lee as co-author.
Lower pitcher
Upper pitcher
