These are N. gymnamphora × N. spectabilis, N. mikei × N. spectabilis, N. rhombicaulis × N. spectabilis, and N. spectabilis × N. tobaica.
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In 1996, Paul Harwood, Heiko Rischer and Andreas Wistuba observed that the majority of prey in both lower and upper pitchers of this form consisted of beetles.
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Plants from the type locality produce relatively broad upper pitchers, while those from Mount Pangulubao are much narrower.
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 | Nepenthes spathulata | Nepenthes rhombicaulis | Nepenthes pitopangii | Nepenthes × kinabaluensis | Nepenthes holdenii | Nepenthes × harryana | Nepenthes dubia | Nepenthes burbidgeae | Nepenthes bellii | A skeletal revision of ''Nepenthes'' (Nepenthaceae) | ''Tahina spectabilis'' foliage |