|Height||7 feet tall|
|Behind the Scenes|
|Universe||Ben 10 Universe|
Methanosians are a floral sapient species from the swamp planet Methanos.
Methanosians are descended from carnivorous swamp plants, but evolved into plant-like herbivorous humanoids at some point in their evolution. They can break down rotting plant matter in their stomachs to produce flammable methane that can be used for their fire attacks.
Early Evolution Edit
Methanosians undergo a metamorphosis process that results in them "blossoming".
A Methanosian appears to amalgamate the abilities of a Pyronite and a Florauna, being able to manipulate both plants and flames. They are strong enough to push down a large Highbreed weather tower. They can also reattach and regenerate missing body parts.
- Methanosians have a swampy stench, due to coming from a swamp planet.
- Methanosians don't have noses, so their voices are very stuffy.
- Blossomed Methanosians can evolve further into Evolved Methanosians.
- According to Duncan Rouleau, the Omnitrix from the Ben 10 reboot contains Methanosian DNA. Therefore, Swampfire is one of the countless aliens whose DNA pod was glimpsed in the episode "Innervasion Part 5: High Override".