Nepenthes jacquelineae is best understood by looking at the broad rim of its aerial pitchers. That flattened structure gives the trap a striking outline, but the lid, its glands and the flowering structures also matter when comparing the plant with related Sumatran species. This profile combines taxonomic evidence with explicitly attributed nursery guidance.
Accepted name
Kew’s Plants of the World Online accepts Nepenthes jacquelineae C.Clarke, Troy Davis & Tamin, published in 2001, as a climbing shrub or liana from western Sumatra. No synonyms or accepted infraspecific children are displayed in the reviewed record.
Keep the accepted spelling on the principal label while retaining spelling variants from invoices in the acquisition history. A nursery clone code provides traceability within cultivation; it does not establish a new botanical variety.
The expanded peristome
The 2022 synopsis of Sumatran Nepenthes keys jacquelineae by its exceptionally broad, expanded peristome, indistinct ribs and ovate lid. The 2006 description of related species contrasts it with jamban: jacquelineae has a broader, smoother rim, a wider lid, a more robust habit and shorter, two-flowered partial flower stalks. Large glands beneath the lid are part of this comparison.
The peristome is the rim around the pitcher mouth. “Ovate” means egg-shaped in outline. These terms refer to particular structures; a broad mouth and a broad peristome are not the same measurement.
For identification, photograph the pitcher from above and from the side. Add the lid underside and a whole-shoot view. The front view helps show how the rim is expanded, while the side view prevents perspective from disguising pitcher depth. Record whether the trap is lower or aerial.
Habitat and horticultural interpretation
Wistuba’s species account describes occurrence mainly as an epiphyte, occasionally on the ground, in moist high-elevation forest in western Sumatra, giving 1,700–2,200 metres. Its cultivation advice calls for bright indirect or dappled light, moderate days, cool nights, high humidity and an open moss-rich medium that drains well. This is a specialist nursery's guidance, not a controlled trial defining universal limits.
The account also discusses viscous fluid and a possible adhesive role in trapping. Treat the suggested function as a hypothesis rather than assuming that a photograph demonstrates prey-capture efficiency.
Epiphytic habitat does not require a cultivated specimen to be mounted on bare wood. The practical question is whether a chosen container and medium provide suitable moisture and aeration under the grower's actual conditions. A potting recipe cannot be assessed independently of the environment in which it is used.
Planning a growing space
Before changing an established plant's conditions, obtain its supplier's current routine. Record measured daytime and night temperatures, the lighting arrangement, medium and watering pattern. A statement such as “kept cool” is difficult to reproduce without actual readings.
Compare those conditions with a full day and night in the proposed location. A shelf can warm differently from the surrounding room, and a reading beside the door may not represent the plant's position. These are measurement considerations, not a new species-specific prescription.
Track successive pitchers with dates and a scale rather than judging success by one unusually broad rim. The published comparison describes a species; it does not promise a particular pitcher size, colour or growth rate for every clone.
Propagation, identity and conservation
Vegetative propagules should retain a link to their source accession. Seed batches need documented parentage, and hybrids should keep their full pedigree. Resemblance to the expanded rim of this species is not evidence that a complex hybrid is pure jacquelineae.
No current global conservation category or guaranteed propagation timetable is asserted here. Prefer documented propagated material and retain uncertainty when the source record is incomplete.
Editorial record: Reviewed 2 October 2026. Kew, later primary identification keys and attributed nursery guidance were consulted; the full 2001 monograph remains a useful source for further editorial comparison. Photography, owner and visual review remain pending.
