Sudowoodo has a brown, log-shaped body with yellow spots. It has short legs with toeless feet and thin forelegs with three green spheres at the ends. It has a forked "branch" on top of its head, which is shorter on the female than on the male. Despite its appearance, Sudowoodo's composition is closer to a rock than a plant.
Sudowoodo disguises itself as a tree and stands along paths to avoid being attacked. Its camouflage fails in the winter, as its forelegs remain green unlike real trees. Sudowoodo is very weak to water and hates it, so it flees when it starts to rain. Because it holds its position for so long, its arms have become supple yet strong. It is popular with the elderly, with available magazines and fans devoted to its arm angle and length. Sudowoodo can be found living in forests.
Brock's Bonsly evolved into Sudowoodo in Leave It To Brocko!. Although needy and easily distressed as a Bonsly, as a Sudowoodo, he proved a strong and reliable partner.
Sudowoodo debuted in Type Casting. Two Pokémon researchers, Marie and Pierre, were arguing over the issue of whether Sudowoodo as a species is a Grass- or Rock-type. As a result, they pursued one in order to prove their own points to each other.
A Sudowoodo appeared in Camp Pikachu, where it was pretending to be part of a tree and greedily kept some grapes for itself rather than share them with the Pichu Brothers.
A golden Sudowoodo appeared in All That Glitters is Not Golden, under the ownership of Keenan. He experimented on it with the hopes of giving it a resistance against the Water-type Pokémon, but he made it turn golden in color in the process. Sudowoodo, however, was unhappy with the change, and was eventually reverted to its previous type and coloration.
A Sudowoodo appeared in The Power of Us, under the ownership of Callahan. Callahan saved Sudowoodo by catching the Golduck that was chasing it. Afterwards, it followed Callahan around before being caught by him.
Sudowoodo, the Imitation Pokémon. Although it camouflages itself as a tree in order to avoid being attacked, its body is actually more like a rock than like a plant. It hates water and disappears whenever it rains.
This concludes the entries from the Advanced Generation series.
In Smeargle Smudge, a Sudowoodo disguises himself as a tree in the middle of Route 37, hiding from a Rhydon. In How Do You Do, Sudowoodo, he revealed himself to Gold after being hit with Polibo's Water Gun. Gold convinced Sudowoodo not to run away from his problems, and Sudowoodo went on to defeat Rhydon in hand-to-hand combat. He soon joined Gold's team with the nickname Sudobo and participated in his friendly match against Silver, and later the Masked Man.
In the Pokémon Gold & Silver: The Golden Boys manga
Gold and Whitney battle a giant Sudowoodo, which is blocking Route 36 in A Huge Mysterious Tree!!. After defeating it in battle, Gold finds out that it had just covered itself in mud to look bigger and catches it, making it one of his party members.
In the Pokémon Pocket Monsters manga
A Sudowoodo first appeared in Sudowoodo's Toll Charges, where it was blocking the way of Red and his Pokémon while they were trying to cross a bridge. With the help of Clefairy, Sudowoodo was able to get its act together until the bridge collapsed, which caused it to walk away sadly.
Sudowoodo is a Poké Float. After Wooper first appears, it will move down the right of the screen while Sudowoodo is on the left. Unlike most of the Poké Floats, players are not required to ever go on Sudowoodo. A trophy of Sudowoodo can be obtained after playing on the Poké Floats stage.
An imitation Pokémon with an aversion to battle, Sudowoodo always poses as a tree in order to avoid being attacked. Despite their arboreal appearance, these Pokémon are actually Rock-types, and therefore highly vulnerable to water. When it begins to rain, they vanish. A Sudowoodo can be found blocking Route 36 in Johto.
This Pokémon was unavailable prior to Generation II.