Pineco

“It likes to make its shell thicker by adding layers of tree bark. The additional weight doesn't bother it.”

— Pokémon Gold

“It hangs and waits for flying insect prey to come near. It does not move about much on its own.”

— Pokémon Silver

“It spits out a fluid that it uses to glue tree bark to its body. The fluid hardens when it touches air.”

— Pokémon Crystal