The plant is a plant in the movie WALL•E. It is a small and young plant that was growing in a broken fridge on Earth. It was discovered by WALL•E after he split the fridges door in two with his laser gun. Despite it being a plant, it plays a very large role in the film.
When WALL•E sees the plant, he digs it up and puts it in an old boot he had found earlier. WALL•E takes the plant to the WALL•E transport vehicle where he lives and where he takes all the interesting items he finds.
When WALL•E shows the plant to EVE, she immediately takes it and stores in her cavity and goes into a standby mode. WALL•E tries to wake her up but all his attempts fail and he becames sad because he thinks that he might have lost the one he loves. While in standby mode, EVE still have sent a message to the probe ship that had took her to the Earth. The ship returns and a robotic arm loads her to the ship. WALL•E manages to climb at the ship before it leaves after he had ordered Hal the cockroach to stay on Earth. There is four other EVE units aboard the probe ship but the EVE WALL•E had met is the only one that had found a plant.
After an indeterminate amout of time in space the probe ship arrives to a much larger spacecraft a BNL starliner called the Axiom. On board the Axiom the probe ship unloads EVE units and WALL•E falls of and manages to reach EVEs. A security robot called GO-4 notices that one of the EVEs had found a plant and summons a cart like transport robot called MVR•A to take the EVE away. GO-4 hops on the transport bot and a robotic arm loads EVE on it. WALL•E immediately goes after the MVR•A and eventually reaches it.
MVR•A takes GO-4, EVE and WALL•E to a room where they meet a organizing bot called TYP-E. TYP-E allows them to enter an elevator that takes them to the bridge of the Axiom. There they meet the ship's steering wheel and autopilot called Auto. Auto talks with GO-4 and opens a hole to the floor that he is going to use to reach the captain who is in the lower room. WALL•E falls to the lower room because he was standing on the hole. Auto awakes the captain and captain's hoverchair takes him to the bridge. He also accidentally pushes WALL•E to the bridge with him.
On the bridge, Auto awakes EVE that captain coud get the plant and they coud return to the planet Earth. But after the captain had "ordered" the ship's computer to open EVE's cavity they see it is empty. The captain is a bit nonplussed and asks Auto if they missed something, but Auto says that EVE's memory is defective and she had not found a plant at all.
The plant is seen again by EVE and WALL•E when EVE had tried to get WALL•E to one of the Axiom's escape pods and send him back to Earth because he had caused a lot of trouble aboard the starliner. EVE and WALL•E are interrupted by GO-4 who enters the room. EVE and WALL•E hide and see GO-4 placing the plant in the escape pod.
GO-4 tries to kill the plant by blowing it up with the escape pod. WALL•E enters the pod and takes the plant but before he manages to leave the pod GO-4 launches it to the space and activates its self-destruct sequence. EVE uses a service airlock to go after the pod and GO-4 leaves the room. WALL•E manages to escape the pod using a fire extinguisher before the pod explodes and saves himself and the plant. He shows the plant to EVE and she takes the plant back. They fly atound the Axiom and return aboard and accidentally lock a welder robot outside the starliner.
EVE manages to reach the captain and gives the plant to him. Captain is eager to return to Earth and summons Auto to see the plant, but Auto insist captain to give the plant to him and it is revealed that Auto has a secret 700 years old Directive A-113 by BNL CEO Shelby Forthright that autopilots should not allow starliners to return to Earth because life was no longer possible on the planet. The captain says that life is now possible and the existence of the plant proves it, if one plant can survive on Earth, then that certainly proves that Earth is habitable.
Auto is unable to disobey his directive and does not allow captain to take the Axiom back to Earth. Auto orders GO-4 to take the plant and throw it to the garbage chute. He does so, but the plant is saved since it lands on WALL•E's head, because he was climbing up the chute to reach EVE. When WALL•E appears from the chute Auto demand him to give the plant, but because he does not do so, Auto shocks him with his taser and WALL•E and the plant fall to the chute. Auto deactivates EVE using her red boot and drops her to the chute.
The plant after it has grown
Eventually, EVE and WALL•E manage to get the plant to the Axiom's holo-detector and the captain turns Auto off. The Axiom returns to Earth and humans plant the plant to the soil. During the credits of the movie, EVE and WALL•E are observing a large tree and it is revealed that the tree is the same plant that WALL•E had found in the fridge.