Nepenthes kongkandana is a southern Thai plant whose formal description was closely tied to concerns about disappearing habitat. It is recognised separately in this encyclopedia's baseline, while a broader competing interpretation groups it with N. kerrii. That difference matters when interpreting old labels and cultivation reports.
Name and taxonomic scope
Kew accepts Nepenthes kongkandana M.Catal. & Kruetr., published in 2015. The range is peninsular Thailand. The reviewed record displays no synonyms or accepted infraspecific children.
Catalano’s current online treatment provisionally includes the name within a broad kerrii concept. This series retains Kew's separate species and records the alternative rather than silently merging the articles. A label should retain the source and date of its determination.
Distinguishing characters
The original description records narrow, leathery leaves that range from lance-shaped to narrowly obovate, with their bases running down the stem. Lower pitchers are swollen in their lower portion and tubular above; upper pitchers remain tubular. Silvery hairs occur on stems and leaves, sometimes chiefly on the newest growth. The lid lacks appendages.
The diagnosis contrasts those upper pitchers and leaf forms with smilesii. Compare mature upper traps rather than applying that distinction to a young plant that has only lower pitchers. The distribution of hairs also needs a stated growth stage.
“Decurrent” describes a leaf base extending down the stem. Include that junction in an identification photograph. A close-up of the pitcher alone cannot show it.
Distribution, ecology and historical losses
The 2015 account records sandy savannah and scrubland near sea level in Songkhla and Pattani. It places the species among seasonal Indochinese plants with an underground rootstock. Of nine recorded colonies, the authors reported seven destroyed; some colony records were photographic or anecdotal rather than personally visited. These are dated source observations, not a current census.
That distinction is important when describing rarity. Repeating the historical number as today's surviving population would imply a survey this draft has not performed. The account nevertheless provides a concrete reason to value habitat protection and documented propagation.
Growing guide
The low-elevation field setting suggests a warm growing context. It does not establish that every nursery accession needs a forced dry rest. A persistent rootstock is evidence of a growth structure, not a measured dehydration threshold for a plant in a small pot.
- Temperature: Obtain the supplier's successful day and night range and compare it with the intended growing space.
- Watering: Record the behaviour of the potting system through the seasons. Do not copy a regional dry season without knowing the moisture conditions around wild roots.
- Exposure: Use the open-habitat observation to guide questions about light, while acclimatising nursery material gradually.
- Growth: Track new shoots, leaves and the transition to upper pitchers. These observations help both horticultural assessment and identification.
- Propagation: Keep seed batches, clones and uncertain identifications separate. Propagating a plant does not resolve an uncertain name.
Reading trade labels
A plant carrying kongkandana in a hybrid formula is not this species profile's subject. Preserve both parents and any clone or batch code. Similarly, an old informal “sp. kongkandana” label should be retained in the history alongside a later determination, not discarded.
Editorial record: Reviewed 2 October 2026. Original diagnosis, historical habitat losses and competing taxonomy checked. A species-specific cultivation trial was not established by these sources. Photography, owner and visual review remain pending.
