In their description of N. naga, the authors compared it to the Sumatran endemics N. ovata and N. spathulata, contending that it can be distinguished from these species on the basis of its dichotomous lid appendage and frilled lid.
Nepenthes spathulata is also known to grow terrestrially in high altitude peat swamp forest near Lake Kerinci, at an altitude of 1100 m.
•
On Mount Dempo, Mike Hopkins, Ricky Maulder and Bruce Salmon found what they believed to be a new species of Nepenthes.
•
The vegetation is dominated by species of the genera Rhododendron and Melastoma, as well as orchids and ferns.
•
Seven putative hybrids have been recorded to date, at least three of which are known from a unique highland peat swamp habitat around Lake Kerinci.
Nepenthes clipeata | Nepenthes bokorensis | Nepenthes | Nepenthes rajah | Nepenthes mantalingajanensis | Nepenthes klossii | Nepenthes faizaliana | Nepenthes epiphytica | Nepenthes abgracilis | Nepenthes rigidifolia | Nepenthes mira | Nepenthes khasiana | Nepenthes kerrii | Nepenthes deaniana | Nepenthes cid | Nepenthes aristolochioides | Nepenthes viridis | Nepenthes ovata | Nepenthes mirabilis | Alstonia spathulata | Nepenthes spathulata | Nepenthes rhombicaulis | Nepenthes pitopangii | Nepenthes × kinabaluensis | Nepenthes holdenii | Nepenthes × harryana | Nepenthes dubia | Nepenthes burbidgeae | Nepenthes bellii | A skeletal revision of ''Nepenthes'' (Nepenthaceae) |