Nepenthes rigidifolia Akhriadi, Hernawati & Tamin in Reinwardtia 12(2): 141 (-144; fig. 1). 2004
Nepenthes rigidifolia in Reinwardtia 12(2): 141 (-144; fig. 1). 2004
Type (designated by Akhriadi, P., Hernawati & Tamin, R. 20041): Sumatra Utara, Kab. Karo, around Sidikalang areas, 1000─1500 m, Dec 11, 2003, Nepenthes Team (Hernawati, P. Akhriadi & I. Petra), NP 354 (‘ANDA’–Holo, BO–Iso).
Nepenthes rigidifolia in Reinwardtia 12(2): 141 (-144; fig. 1). 2004