Borneo harbors more pitcher-plant species than all other islands combined
Island Distribution — Nepenthes, Southeast Asia
Borneo (Sarawak, Sabah, Kalimantan)
43%
73 spp.
Sumatra & associated highlands
19%
32 spp.
Philippine archipelago (Palawan, Mindanao)
18%
31 spp.
Peninsular Malaysia & Thai borderlands
11%
19 spp.
New Guinea, Sulawesi & smaller islands
9%
15 spp.