Introduction & Discovery

Nepenthes lowii is one of the most scientifically notable plants discovered in the 21st century — not because it was recently discovered (Sir Hugh Low collected it in 1851), but because its true ecological function was only understood in 2009. Endemic to the mossy cloud forests of northern Borneo at elevations between 1650 and 2600 meters, N. lowii has long been famous among carnivorous plant enthusiasts for its extraordinary upper pitchers, which assume a bizarre hourglass or 'toilet-bowl' shape unlike anything else in the genus. For over a century, botanists puzzled over why a carnivorous plant would evolve such an obviously poor trap geometry: the upper pitchers have dramatically constricted waists, strongly reflexed lids that gape upward rather than shading the mouth, and a narrow waxy zone — features that should make insect capture almost impossible. The answer, published by Charles Clarke, Jonathan Moran, and colleagues in Biology Letters in 2009, is that N. lowii is not primarily an insectivorous plant at all. Its upper pitchers have evolved into feeding stations for the mountain treeshrew (Tupaia montana), which sits on the reflexed pitcher lid to lick abundant nectar from specialized glands on the underside, and while feeding, defecates directly into the pitcher below. Isotopic analysis showed that 57-100% of the foliar nitrogen in mature N. lowii plants comes from treeshrew feces — making this species one of the very few plants on Earth that has converted its carnivorous ancestry into a mutualistic relationship with a mammal. The pitcher of N. lowii is, quite literally, a treeshrew toilet that the plant has engineered through millions of years of evolution.

Discovery & Naming

Nepenthes lowii was first collected on Mount Kinabalu, Sabah, Borneo, by Sir Hugh Low during his pioneering ascent of the mountain in March 1851 — the first documented European expedition to reach the summit plateau of what would later become Southeast Asia's most famous protected mountain. Low, then a 27-year-old British colonial officer and naturalist later appointed Resident of Perak, collected dried specimens that were sent to Joseph Dalton Hooker at the Royal Botanic Gardens, Kew, and used as the basis for Hooker's formal description of the species in 1859 in the Transactions of the Linnean Society of London. Hooker named the species in honor of its collector. For the next 150 years, N. lowii remained known primarily as a horticultural curiosity with bizarre pitcher morphology, and multiple hypotheses were proposed to explain the unusual pitcher shape — including that the open, inverted lid collected rainwater, that the nectar glands attracted specific flying insect groups, or that the pitchers trapped small arboreal lizards. None of these explanations fit the observable facts: the pitchers contained very few captured prey, and the plants remained vigorous despite this apparent lack of nutrition. The mystery was only resolved in 2009 when Clarke and colleagues published 'Tree shrew lavatories: a novel nitrogen sequestration strategy in a tropical pitcher plant' (Biology Letters 5: 632-635), directly documenting the treeshrew mutualism through behavioral observation, camera trap footage, and nitrogen-15 stable isotope analysis. Follow-up research by Greenwood, Chin, Clarke and colleagues (2011) showed that the summit rat (Rattus baluensis) on Mount Kinabalu also visits N. lowii pitchers to feed and defecate, and that mammalian contributions to N. lowii's nitrogen budget extend across multiple vertebrate visitors. This work transformed N. lowii from a horticultural curiosity into one of the most scientifically significant plants of its decade.

Trapping Mechanism

The upper pitchers of Nepenthes lowii have undergone a notable evolutionary transformation from a typical insect-trapping Nepenthes pitcher into a specialized mammalian feeding station. Mature upper pitchers are roughly cylindrical at their base (5-8 cm wide) but constrict dramatically at a central 'waist' to form an hourglass shape before flaring slightly at the mouth (15-20 cm long overall). The most distinctive feature is the lid: whereas most Nepenthes pitchers have a flat or slightly curved lid that shades the pitcher mouth and helps concentrate the waxy zone, N. lowii upper pitchers have a dramatically reflexed lid that curves backward and upward, exposing its underside fully to the sky. The inner surface of this reflexed lid is covered with abundant nectar glands producing a sweet, slightly bitter secretion that is consumed by mountain treeshrews (Tupaia montana) and summit rats (Rattus baluensis). Crucially, the distance from the nectar-producing zone on the lid to the pitcher orifice is precisely calibrated to match the body length of a feeding treeshrew — approximately 15-20 cm — meaning that when a treeshrew positions itself to lick nectar from the lid, its hindquarters hang directly over the pitcher mouth. The arrangement is so geometrically precise that Clarke et al. (2009) were able to predict mutualism from pitcher geometry alone before confirming it with behavioral observations. The pitcher fluid itself retains digestive enzymes (aspartic proteases, nepenthesins) capable of breaking down organic matter, but the enzyme concentration is somewhat reduced compared to insectivorous Nepenthes because the nitrogen source — shrew feces — is already partially digested animal material requiring less enzymatic work to mineralize. Lower (rosette) pitchers of N. lowii retain a more conventional Nepenthes morphology with functional insect traps, providing supplemental nutrition to juvenile and early-climbing plants before they reach the height where mammalian visitors can access them.

Native Range & Distribution Map

Distribution map showing the native range of Nepenthes lowii.

Biology & Trapping Mechanism

Nepenthes lowii is a climbing vine reaching 10 meters or more in length in its native montane cloud forest habitat, though individual stems may be considerably shorter in the stunted summit scrub at the upper elevational limit of its range. Stems are terete to bluntly angular, 4-8 mm in diameter on adult climbing sections, and are often densely covered with a velvety indumentum of brown hairs that gives young growth a characteristic fuzzy appearance — the species epithet refers to Hugh Low rather than to this 'low-pile' fuzz, though the coincidence is fitting. Leaves are sessile, coriaceous, oblong-lanceolate, 10-30 cm long and 3-8 cm wide, with the midrib extending into a strong tendril 30-80 cm long. The species exhibits one of the most extreme examples of pitcher dimorphism in the genus Nepenthes. Lower (rosette) pitchers are typical Nepenthes form: ovoid to cylindrical, 10-25 cm tall and 4-10 cm wide, with well-developed peristome, waxy zone, and normally oriented lid. They function as conventional insectivorous traps. Upper pitchers, in stark contrast, have the specialized hourglass shape with constricted waist and strongly reflexed lid described above. The transition between the two forms occurs when the plant begins active climbing, usually at heights of 50-150 cm above the ground. Pitcher coloration in N. lowii is typically muted — green to pale yellow-brown externally with dark purple or red mottling, and a cream to pale pink peristome — contrasting with the flashy coloration of many lowland congeners. The inflorescence is a large panicle 30-60 cm long bearing numerous small greenish-yellow flowers; the species is dioecious. Seeds are filiform, 10-20 mm long, adapted for wind dispersal through the open canopy of montane forest.

Prey & Feeding Ecology

Nepenthes lowii has one of the most unusual nutrient acquisition strategies of any plant in the world. Juvenile rosette plants and young climbing stems function as conventional insectivorous Nepenthes, capturing ants, small flies, and beetles in lower pitchers that retain typical Nepenthes morphology with well-developed peristome, waxy zone, and concentrated digestive fluid. As the vine climbs and begins producing upper pitchers — typically at heights of 1-3 meters above the forest floor where mammalian visitors can access them — the pitcher morphology transforms into the specialized 'toilet' configuration, and the primary nutritional strategy shifts from insect capture to feces collection. The key visitor is the mountain treeshrew (Tupaia montana), a diurnal squirrel-like mammal endemic to the mountains of Borneo and the Malay Peninsula, which visits N. lowii pitchers repeatedly throughout the day to feed on lid nectar. While feeding (which can take several minutes per visit), the treeshrew maintains a characteristic posture with its head tilted up toward the lid and its rear suspended over the pitcher mouth, and the animal frequently urinates and defecates during these visits. The resulting inputs of shrew feces provide a rich source of nitrogen, phosphorus, and other essential nutrients that would otherwise be unavailable in the nutrient-poor mossy cloud forest substrate. Nitrogen-15 stable isotope analysis by Clarke et al. (2009) demonstrated that mature N. lowii plants derive between 57% and 100% of their foliar nitrogen from treeshrew feces, with the exact proportion varying between populations and individual plants. A 2011 follow-up study by Greenwood et al. showed that the summit rat (Rattus baluensis) on Mount Kinabalu also feeds at and defecates into N. lowii pitchers during nocturnal activity, representing a temporal partitioning of mutualistic visitors across the 24-hour cycle. Bird visitors have also been observed at upper pitchers, though their ecological contribution has not been quantified. This system represents one of the best-documented plant-mammal mutualisms in the world and has made N. lowii a flagship species for discussions of evolutionary transitions between trophic strategies.

Comparison with Similar Species

Compared to N. rajah — its famous Mount Kinabalu neighbor and frequent hybrid partner — N. lowii produces smaller pitchers overall (upper pitchers 15-20 cm vs. N. rajah's 25-40 cm) but more bizarre morphology with the iconic hourglass shape. N. rajah is a ground-level terrestrial species producing massive rosette pitchers, while N. lowii is a climbing species specialized for upper pitchers on vines. The natural hybrid between the two (N. x kinabaluensis) is one of the most famous hybrid plants in the world and combines features of both parents. Compared to N. villosa (another ultra-highland Kinabalu endemic), N. lowii grows at slightly lower elevations, has markedly different pitcher morphology, and is somewhat more cultivation-tolerant — though both species require cool highland conditions. Compared to N. edwardsiana (the most ornate Kinabalu Nepenthes with its heavily toothed peristome), N. lowii is less visually dramatic in terms of pitcher teeth but more ecologically notable due to the mammal mutualism. For collectors pursuing the 'bizarre Nepenthes morphology' niche, N. lowii is essential alongside N. macrophylla and N. ephippiata (a closely related species from Kalimantan with similar toilet-pitcher morphology). For collectors seeking an easier introduction to the 'lowii look,' the hybrid N. lowii x N. ventricosa (sometimes called 'Nepenthes Red Leopard' or similar trade names depending on clone) is vastly more forgiving while retaining recognizable N. lowii influence in pitcher shape.

Reproduction & Propagation

Nepenthes lowii propagation is notoriously slow and difficult, which is the main reason the species remains expensive and uncommon in cultivation despite its fame. Seed propagation requires fresh seed (viability drops rapidly within 2-3 months) sown on the surface of moist live sphagnum in a sterile sealed container, maintained at 18-24°C daytime and 10-15°C nighttime with 90%+ humidity and 12-14 hours of bright diffuse light. Germination occurs in 6-16 weeks, with germination rates typically 10-40% for fresh seed — much lower than most Nepenthes. Seedlings grow extremely slowly, producing their first tiny pitchers (2-3 cm) after 6-12 months and reaching 10 cm pitcher size in 3-5 years under optimal highland conditions. Seed is rarely available to home growers because wild collection is prohibited and cultivated plants rarely flower; most seed in commerce comes from ex-situ conservation collections. Stem cuttings are possible but have lower success rates than most Nepenthes: take a cutting with 2-3 nodes, remove lower leaves, dip in IBA rooting hormone, insert in damp live sphagnum in a sealed container at 15-22°C with bright diffuse light. Root formation typically takes 8-16 weeks with success rates of 30-60% under ideal conditions. Air layering on mother plants is occasionally successful but slow. Tissue culture (micropropagation) is the only commercially viable method and is used by specialty nurseries including Borneo Exotics (Sri Lanka), Andreas Wistuba (Germany), and Exotica Plants (Australia) to produce plants for the horticultural trade. Tissue-cultured N. lowii are typically sold as small plantlets (2-5 cm pitchers) at premium prices and may take 5-10 years to reach mature climbing size that produces the famous upper pitchers.

Cultivation & Substrate

Nepenthes lowii is among the most challenging Nepenthes species in cultivation, demanding strict highland conditions that few growers can provide without specialized climate control. Temperature requirements are non-negotiable: daytime maximum of 20-25°C, nighttime minimum of 8-15°C, with consistent day-night temperature differential of at least 8-10°C. Sustained temperatures above 26°C cause stress, pitcher abortion, and eventual death; the species has no meaningful heat tolerance and will decline rapidly in typical lowland or intermediate Nepenthes conditions. A refrigerated highland chamber, thermoelectric-cooled terrarium, or dedicated cool-room greenhouse is essentially required for successful long-term cultivation outside naturally cool tropical mountain regions. Substrate should be an extremely open, aerated mix — live long-fiber sphagnum moss, or a mix of long-fiber sphagnum with perlite and orchid bark at 2:1:1 ratio. The root system of N. lowii is particularly sensitive to stagnation and heat at the roots, so plastic hanging baskets or wire mesh baskets lined with sphagnum are often preferred over standard pots because they allow maximum root aeration. Water exclusively with cool (ideally refrigerated before use) distilled, reverse-osmosis, or rainwater; cool water is important because watering highland Nepenthes with room-temperature water in warm environments raises root-zone temperatures and promotes root rot. Humidity should be maintained at 80-95% at all times — below 70% for more than brief periods causes pitcher abortion and leaf desiccation. Provide bright diffuse light — never direct sun — equivalent to heavily filtered tropical canopy light, or 12-14 hours under high-output LED grow lights at 20,000-30,000 lux. Fertilization is generally unnecessary and risky; if supplementation is desired, very dilute foliar spray of orchid fertilizer (1/8 strength) applied to leaves only once monthly is the maximum safe dose. Feeding upper pitchers with small amounts of fresh insect frass or diluted fish emulsion has been suggested as an analog for the natural mammalian feces input, but most growers let the plants rely on ambient organic deposition.

Common Mistakes to Avoid

1) Growing N. lowii in intermediate or lowland conditions — this is the number one killer of the species in private collections. The plant has essentially no tolerance for sustained warmth above 26°C and requires consistently cool nights below 16°C. Growers who attempt to keep it alongside lowland species or in typical heated homes will lose the plant within months. 2) Expecting the 'toilet' upper pitchers on young plants — the characteristic hourglass upper pitchers only appear when the plant reaches climbing maturity, typically after 3-5 years of growth and a stem length of 1-2 meters. Juvenile plants produce ordinary rosette pitchers and may look disappointing to collectors expecting the famous morphology immediately. 3) Overly tight potting or compacted substrate — the root system requires exceptional aeration; compacted peat, standard potting mix, or waterlogged media will cause root rot within weeks in the cool, humid conditions this species demands. 4) Warming the growing chamber to accelerate growth — tempting because N. lowii grows very slowly, but raising temperatures will kill the plant faster than slow growth will frustrate the grower. Accept the slow pace; mature specimens may take 5-10 years from seedling to first upper pitchers. 5) Inadequate humidity — although many Nepenthes tolerate some humidity fluctuation, N. lowii requires consistently 80%+ relative humidity and will abort pitchers and drop leaves at humidity below 60%. Running a humidifier and checking humidity with a reliable hygrometer is essential. 6) Using tap water of any kind — even 30 ppm TDS is too high for this sensitive species. Only distilled or RO water below 15 ppm TDS is safe. 7) Attempting to feed upper pitchers with whole insects — the 'toilet' morphology is poorly adapted to actually capturing insects, and forcing prey into upper pitchers often causes pitcher rot. Let the plant function as nature intended.

Seasonal Considerations

Nepenthes lowii is an equatorial montane plant with no meaningful seasonal dormancy in its native range, where it experiences essentially constant cool humid conditions year-round. In cultivation, the main seasonal challenge in temperate climates is maintaining cool temperatures through summer heat waves — many growers who successfully overwinter N. lowii lose their plants to summer temperatures above 28°C in non-air-conditioned rooms. If using a passive cool-room (basement or cellar) for cultivation, monitor temperatures continuously during summer and be prepared to move the plant to an air-conditioned space or refrigerated chamber if ambient temperatures rise. During winter in temperate climates, the natural cooling of home interiors during heating-off periods or in unheated sun rooms can actually benefit N. lowii, provided humidity is maintained. Growth is slow and steady throughout the year — expect 2-4 new leaves per year on established plants, with new upper pitchers appearing on climbing stems at intervals of 2-6 months depending on conditions. Repotting is best done sparingly because N. lowii is slow to recover from root disturbance; spring (during the period of longest days and most vigorous growth) is the best repotting time when absolutely necessary, typically every 2-4 years. Do not fertilize during any season; the plant has evolved to rely on episodic high-quality nitrogen inputs (mammal feces in the wild) rather than constant low-level nutrition, and attempting to force growth with fertilizer will damage the root system.

Seasonal Care Calendar

Diseases & Pests

Nepenthes lowii is vulnerable to a specific set of problems related to its demanding cultivation requirements. Root rot (Pythium, Phytophthora) is the primary killer in cultivation, typically caused by temperatures that are too warm for the species combined with wet substrate — the pathogenic oomycetes proliferate rapidly above 22°C in waterlogged media. Symptoms include sudden wilting, leaf yellowing, stem blackening at the base, and collapse of new growth; once advanced, root rot is usually fatal because the slow-growing species cannot regenerate roots quickly enough to recover. Treatment requires immediate repotting into fresh sterile long-fiber sphagnum with all affected tissue removed, reduced watering, and improved aeration. Crown rot and Botrytis (grey mold) develop rapidly in the cool, humid conditions this species requires if air circulation is inadequate; always provide continuous gentle air movement. Fungal leaf spots occasionally appear as small brown circular lesions during cool damp periods; improve ventilation and remove affected leaves. Scale insects are uncommon but can colonize stem joints and leaf undersides on cultivated plants; dab individually with isopropyl alcohol. Thrips can damage young developing pitchers; monitor with sticky yellow cards. The natural slow decline and senescence of older pitchers (each upper pitcher lasts approximately 6-12 months on the vine before browning and detaching) is NOT disease — do not interpret normal pitcher aging as pathology. A specific problem in cultivation is 'failure to produce upper pitchers' — where the plant remains in juvenile rosette form indefinitely without transitioning to climbing growth; this is usually caused by insufficient light intensity (the plant cannot generate the energy needed to extend climbing stems) or premature vertical training that disrupts the hormonal balance; provide stronger light and avoid manipulating stem orientation until the plant naturally begins climbing.

Indoor Growing & Terrariums

Growing Nepenthes lowii as an indoor houseplant in a typical home environment is essentially impossible. The species requires temperatures that are 10-15°C cooler than typical heated interior rooms, relative humidity above 80% (room humidity is usually 30-50%), and a level of environmental consistency that is incompatible with normal residential conditions. For determined growers, the only viable indoor setups are: (1) a dedicated refrigerated highland growing chamber, either purpose-built or converted from a mini-fridge or wine cooler with modifications for lighting, humidity, and air circulation; (2) a cold-room or basement naturally maintaining 10-18°C year-round, equipped with grow lights, humidifier, and fan; (3) an unheated sunroom or greenhouse in a naturally cool climate (coastal Pacific Northwest, cool montane regions) where ambient temperatures never exceed 25°C in summer. For growers without these options, attempting to keep N. lowii alive in typical indoor conditions will result in decline and death within a few months regardless of care quality. The species is fundamentally not a houseplant — it is a specialty collection item that requires investment in climate control infrastructure. Growers interested in the 'toilet pitcher' morphology without the extreme cultivation requirements should consider Nepenthes ventricosa or Nepenthes lowii x ventricosa hybrids, which approach some of the distinctive features while being vastly more tolerant of normal indoor conditions.

Terrarium Setup

A dedicated highland terrarium with active cooling is the only reliable way to grow Nepenthes lowii outside a naturally cool tropical montane climate. Enclosure dimensions should be at least 80 x 50 x 80 cm (W x D x H) to allow adequate air volume for temperature stability and to accommodate the vining growth; taller enclosures are better because the species climbs and produces its signature upper pitchers at height. Cooling is achieved through one of several methods: (1) a thermoelectric Peltier cooler mounted to the terrarium wall, capable of maintaining 10-15°C cooler than ambient room temperature; (2) a dedicated refrigerated growing chamber or modified mini-fridge; (3) a cool basement or root cellar naturally holding 10-18°C year-round; or (4) cold-water circulation through copper tubing inside the terrarium connected to an external chiller. Lighting comes from high-output LED grow lights positioned above the enclosure (external lighting is often preferred to avoid heat buildup inside); 14-hour photoperiod at 20,000-30,000 lux measured at leaf level. Substrate consists of live long-fiber sphagnum moss as the primary growing medium, possibly over a drainage layer of LECA or pumice. Install at least one small computer fan for continuous gentle air circulation — N. lowii is particularly sensitive to stagnant air in cool humid conditions and will develop Botrytis and crown rot without movement. Mist the interior 2-4 times daily with cool distilled water, either manually or via automated misting systems. Companion species for a highland terrarium with N. lowii include other ultra-highland Bornean Nepenthes (N. villosa, N. rajah if space allows, N. macrophylla), montane Pinguicula species (P. moctezumae, P. emarginata), and Utricularia alpina — all of which share the cool temperatures and high humidity N. lowii requires.

Landscape & Bog Garden Use

In tropical climates (USDA zones 10–12), Nepenthes lowii can be grown outdoors in a shaded, humid garden setting. Mount on trees, grow in hanging baskets, or plant in a raised bed with excellent drainage.

Conservation & Collector Notes

Nepenthes lowii is assessed as Vulnerable (VU) on the IUCN Red List, reflecting its restricted distribution on a handful of northern Bornean mountains, its specialized ultramafic and montane habitat requirements, and ongoing threats from poaching and climate change. All Nepenthes species are listed on CITES Appendix II, requiring international trade permits, and N. lowii is strictly protected within Kinabalu Park (UNESCO World Heritage Site since 2000) and Gunung Mulu National Park (UNESCO World Heritage Site since 2000). Unauthorized wild collection from these protected areas is a criminal offense under Malaysian law. Climate change represents a serious long-term threat because the species occupies a narrow elevational band at the upper limit of Bornean montane forest — warming temperatures may force populations upward to higher elevations, but on isolated mountain peaks there is limited or no suitable habitat available above current populations. The treeshrew mutualism itself may be vulnerable to climate-driven shifts in Tupaia montana distribution and behavior, though the impact on N. lowii has not been quantified. Poaching of wild plants for the illegal horticultural trade has historically been a problem and remains an ongoing concern despite improved protection and tissue culture alternatives. Ex-situ conservation is maintained at botanical gardens including Royal Botanic Gardens Kew, Royal Botanic Garden Edinburgh, and specialty Nepenthes nurseries that maintain documented genetic material. The most effective individual action for conservation is to purchase only tissue-cultured plants from reputable nurseries with documented provenance and to support protected area management in Sabah and Sarawak.

Collector Notes

Nepenthes lowii is one of the most desired and expensive Nepenthes species in the horticultural trade due to the combination of its famous pitcher morphology, biology, and notorious difficulty in cultivation. Tissue-cultured clones are available from several specialty nurseries at premium prices: Borneo Exotics (BE) clones from Mount Mulu, Mount Trusmadi, and Mount Murud localities; Andreas Wistuba (AW) seed-grown and tissue-cultured plants from documented provenances; Exotica Plants (Australia) selected clones; Christian Klein (Germany) specialty releases. Pricing ranges from 80-200 EUR for small tissue-cultured plantlets up to 500-1500 EUR for mature specimens with developing upper pitchers, with exceptional mature plants in peak condition occasionally reaching 3000 EUR or more in private sales. Locality forms are distinct and collected separately: the Mount Kinabalu form (type locality) has the classic hourglass upper pitcher; the Mount Trusmadi form often has darker pigmentation; the Mount Mulu form tends to have narrower pitcher waists; the Mount Murud form has particularly heavily reflexed lids. Natural hybrids involving N. lowii are among the most horticulturally important in the genus: N. x kinabaluensis (N. lowii x N. rajah, the most famous natural Nepenthes hybrid, endemic to Mount Kinabalu), N. x trusmadiensis (N. lowii x N. macrophylla, from Mount Trusmadi), and N. lowii x N. stenophylla occur where the parent species overlap. Artificial hybrids crossing N. lowii with more cultivation-friendly species — N. lowii x N. ventricosa, N. lowii x N. spectabilis, N. lowii x N. maxima — produce vigorous plants that retain some N. lowii characteristics while being substantially easier to grow, and these crosses are often a more practical choice for collectors seeking the 'lowii look' without the extreme care requirements.

Ethnobotany & Cultural Significance

The Kadazan-Dusun people, who are the indigenous inhabitants of the Mount Kinabalu region in Sabah, have lived alongside Nepenthes lowii and the other Kinabalu pitcher plants for centuries. Mount Kinabalu itself (known in Kadazan-Dusun as 'Aki Nabalu,' meaning 'the revered place of the dead') holds profound spiritual significance in Kadazan-Dusun cosmology as the resting place of ancestral spirits, and specific cultural protocols traditionally governed ascents of the mountain. The sacred status of Kinabalu contributed to the preservation of its unique flora including the endemic Nepenthes species. Like other large Nepenthes across Southeast Asia, N. lowii pitchers have been used occasionally as water containers by travelers and hunters in the montane forest, though the relatively small pitcher size compared to lowland species such as N. rafflesiana made them less practical for this purpose. The species has no documented medicinal use in Kadazan-Dusun traditional medicine. In the European botanical tradition, Sir Hugh Low's 1851 collection of N. lowii during the first recorded European ascent of Mount Kinabalu is regarded as a landmark event in the botanical exploration of Southeast Asia. Low's assistant on that expedition, the Malay collector Sampang, was instrumental in actually climbing to the upper zones where N. lowii grows, and contemporary historical accounts increasingly recognize the role of Indigenous guides and collectors in the 'discoveries' credited to European naturalists of the colonial era. The 2009 Clarke et al. paper documenting the treeshrew mutualism has given N. lowii a prominent place in popular science writing about plant-animal coevolution, and the species frequently appears in nature documentaries (BBC Planet Earth II, Attenborough's The Green Planet) and popular books on unusual plants.

Frequently Asked Questions