Super Happy Tree
From the Super Mario Wiki, the Mario encyclopedia
The Super Happy Tree (sometimes known as the Marvelous Tree of Mirth) is a tree that is only found on Yoshi's Island in Yoshi's Story. It grows every type of fruit available on the island, including the magical Heart Fruit. It is the ultimate source of all the Yoshis' happiness on Yoshi's Island. Baby Bowser steals the Super Happy Tree for its power, but the baby Yoshis later reclaim it. Baby Bowser later claims that it tasted rotten to him anyway.
In the Yoshi's Story manga adaptation section of Mario no Bōken Land, the Super Happy Tree makes an appearance.
It later appears in Super Smash Bros., Super Smash Bros. Melee, and Super Smash Bros. Ultimate in the background of the stage of the same name. It also makes a cameo in the background of Yoshi Park during Mario Superstar Baseball. It also appears as a spirit in Super Smash Bros. Ultimate.
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