Description: This species, described by Kurata in 1973, has been found only on a few mountains in the Lake Toba region of North Sumatera, where it grows on shady forested slopes. Its name is derived from the unusual sharply angled stem, which can climb to 10 meters or more into the tree canopy. Upper pitchers are only rarely produced, but rosettes of lower pitchers (which are often partially buried in leaf litter) can be found at the base of the vine.
Cultivation recommendations: Grow cool as for other highland species. Nepenthes rhombicaulis can tolerate considerable shading. See also: How to Grow Nepenthes
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