Big Poison Piranha Plant

Big Poison Piranha Plants are larger variants of Poison Piranha Plants that appear in Super Mario Odyssey.

Super Mario Odyssey
When Big Poison Piranha Plants spot Mario, they spit large balls of poison at him, creating large puddles of poison if it touches the ground. Throwing Cappy at a Big Poison Piranha Plant causes it to swallow him, momentarily becoming stunned from choking on Cappy, allowing Mario to jump on the plant.

One Big Poison Piranha Plant appears in the Iron Road section of the Wooded Kingdom, two are found in the Underground Power Plant in the Metro Kingdom, and three are found in a secret area on the Dark Side where Mario must defeat them without the use of Cappy. Upon defeat, they drop six coins, along with a Power Moon when every Big Poison Piranha Plant in the area is defeated.

Even though regular Poison Piranha Plants are able to be captured, Big Poison Piranha Plants are not, as they will only chew and swallow rocks thrown into their mouths.

Super Smash Bros. Ultimate
In Super Smash Bros. Ultimate, Big Poison Piranha Plants (simply called Big Poison Piranhas) are mentioned briefly by Viridi during Palutena's Guidance dialogue for Piranha Plant.