It is easily spotted on road banks and other cleared areas in Borneo. There are several colour forms, but all plants have a similar thin, scrambling vine structure, that is an easily distinguishable feature of this species. N. gracilis is predominantly found at the lower altitudes of its range, but has been observed growing next to N. stenophylla at Long Buan, Kalimantan Timur, and 2/3 of the way up the Crocker range in Sabah.
Borneo, Sumatra, Peninsular Malaysia, Sulawesi, Singapore, Thailand
ELEVATION: 0-1000 meters
Depending on the cultured plants origin, this species may be very susceptible to cooler temperatures. Grow as a typical lowland plant, and it will thrive. As plants get larger, put them into very large containers, and they will climb to form a large mass of stems and pitchers.