Pitcher Plants of the Old World
Nerz and Wistuba disagreed with this synonymisation. Charles Clarke elevated "N. talangensis" to a species once again in his 2001 book, "Nepenthes of Sumatra and Peninsular Malaysia". The next detailed treatment of "N. talangensis" appeared in Stewart McPherson's 2009 monograph, "Pitcher Plants of the Old World", which retained it as a separate species.