Nepenthes fusca × N. lowii is difficult to confuse with its putative parent species, but is somewhat similar to N. chaniana × N. veitchii.
Nepenthes fusca × N. tentaculata was discovered by Linus Gokusing near the summit of Mount Alab, where it grows in upper montane forest at elevations of around 1800 to 2000 m [REF].