ɪɾ ɪz klˈoʊsɪst tʊ ˈeɪtʃ. hˈɛɾɚɹˌoʊdɑːksə ænd ˈeɪtʃ. fˌɑːlɪkjʊlˈɑːɾə, fɹʌm wˈɪtʃ ɪt kæn biː dɪstˈɪŋɡwɪʃt baɪ ðə lˈɑːɹdʒ lˈɪd ɡlˈændz ænd wˈɪtθ ʌvðə pˈɪtʃɚ lˈɪd.
It is closest to H. heterodoxa and H. folliculata, from which it can be distinguished by the large lid glands and width of the pitcher lid.