"N. singalana" × "N. spathulata"# "N. spathulata" × "N. tobaica"# "N. spectabilis" × "N. tobaica"Endemic species with no known natural hybrids:* "N. adnata"* "N. junghuhnii"* "N. lavicola"* "N. naga"* "N. tenuis"==فلبين=="Nepenthes" natural hybrids recorded from the Philippines.
"N. singalana" × "N. spathulata"# "N. spathulata" × "N. tobaica"# "N. spectabilis" × "N. tobaica"Endemic species with no known natural hybrids:* "N. adnata"* "N. junghuhnii"* "N. lavicola"* "N. naga"* "N. tenuis"==Philippines=="Nepenthes" natural hybrids recorded from the Philippines.