Nepenthes maxima ‘Lake Poso’ is a published cultivar name for small, slender plants associated with the Lake Poso area of Sulawesi. Its definition is broader than a single selected clone, and its relationship to the botanical name minima needs to be explained without confusing horticultural naming with species classification.
Published cultivar definition
David P. Evans’s March 2009 account describes consistently reduced stature, slender stems and a generally wiry appearance. Cultivated rosettes measured about 20–32 centimetres across without tendrils and pitchers. Colour varies and is not the defining criterion. Plants from elsewhere should not receive the name merely because they are small.
The account permits cuttings and seed from qualifying parents, rather than restricting the name to vegetative copies of one individual. Keep the particular clone or seed-batch identity alongside the cultivar name.
Relationship to Nepenthes minima
The 2016 description of Nepenthes minima links the cultivated ‘Lake Poso’ material with a separately recognised species concept. In the current Kew treatment of Nepenthes maxima, however, minima is listed as a synonym of maxima.
This article retains the published cultivar title and makes the alternative species treatment explicit. A botanical synonymy decision does not erase the cultivar's documented history, and it does not prove that every plant sold as minima meets the cultivar definition.
Growing guidance
Evans recommends a freely draining Nepenthes medium and intermediate conditions with warm days and cooler nights, avoiding prolonged ultra-highland cold. His description allows climbing stems several metres long, despite the plant's smaller overall scale.
- Space: Plan for eventual vining. “Miniature” is a comparison with larger plants, not a guarantee of permanent rosette growth.
- Temperature: Obtain the successful conditions of the supplied clone or batch rather than imposing the coldest regime used for other maxima material.
- Drainage: Check how water moves through the actual container and how quickly the medium changes between waterings.
- Acclimatisation: Make substantial exposure changes gradually and assess the next growth cycle.
- Records: Keep parent identities for seed-grown material and retain source codes on cuttings.
Assessing a plant offered under the name
Ask whether the label refers to documented cultivar material, a general Lake Poso locality statement or a seller's shorthand for a small plant. Those descriptions are not automatically interchangeable. A juvenile may be small simply because it is juvenile, so mature growth and provenance are needed for a useful assessment.
Photographs should show the whole plant with a scale as well as its pitchers. A tightly cropped trap cannot establish the relative stature central to the cultivar definition. Colour variation should be recorded rather than treated as a reason to rename an otherwise documented accession.
Propagation and naming continuity
A cross with a different named parent should retain that full parentage. The cultivar account's allowance for qualifying seed reproduction does not authorise applying the name indiscriminately to every offspring or compact hybrid. Preserve the evidence that makes a plant eligible for the name.
Editorial record: Reviewed 2 October 2026. Original cultivar definition and propagation scope checked against competing botanical treatments. Verified photography, owner and visual review remain pending.
