Obesus rotundus - fat and round
|Behind the scenes|
The puffball tree (Na'vi name: rumut) is from the same genus as the puffer, puff daddy and vein pod. The tree is tall with globular structures supported by the branches. They are filled with hydrogen gas and sodium hydroxide, which can cause them to explode if provoked. The plant is very important in Pandora's eco-system, because of these structures. They absorb toxic gases like life-size vacuoles in plant cells. When they are large enough, they break free of the plant and float upwards. They also absorb excess sodium from the soil, and so the humans brought samples back to Earth, for potential use in areas where overfarming has left soils salty and useless.
The Na'vi harvest the leaves because of their salty taste. They also use them to feed livestock. They have learned to be careful of the gaseous balls, due to their explosive nature.
- In AVTR Advanced Team, puffball trees can be destroyed to make shortcuts in the map.
- James Cameron's Avatar: The Game - Ingame Pandorapedia