Nepenthes glandulifera originates from the Hose Mountains of Sarawak. The mountain they live on is inaccessible and remote that Nepenthes researcher Chi’en Lee is the only person to have observed it in the wild (although there have been a couple reported cases of the plant growing epiphytically in the surrounding area with observers seeing them with binoculars). As the name suggests, Nepenthes glandulifera exhibits numerous black glands over the entirety of the plant (leaves, tendrils and pitchers). The glands serve as a nectar lure for crawling and flying insects and put out a sweet, honey-like fragrance that can fill up a greenhouse on warm, sunny days.
All plants in cultivation owe their lineage to a single mother plant (the type specimen) which was in bloom at the time of taxonomic collection. The seeds were placed into tissue culture by Malesiana Tropicals and an assortment of male and female clones were produced. Borneo Exotics then flowered out sibling plants from these clones and bred them. These plants are the progeny.
I have found Nepenthes glandulifera to be a vigorous highland plant also growing well in intermediate conditions (I even have a friend who grows it in a lowland greenhouse surprisingly well). Due to its thick, hairy leaves it is quite tolerant of humidity and temperature fluctuations. In order for the plant to produce high levels of nectar it is recommended to grow it in fairly strong light.