Minecraft wiki entry for Chorus, associated text: Chorus tree, tree-like structures that are found in abundance throughout the outer islands of the End
Chorus Plant, the blocks that make up chorus trees
Chorus Flower, a block found on chorus trees that, when placed on end stone, grows a new chorus tree
Chorus Fruit, a food item that teleports the player a short distance, similar to an enderman
Popped Chorus Fruit, an item used to craft purpur blocks and end rods, obtained by smelting chorus fruit in a furnace