Xurkitree seems to be based off a tree that had been fused with electrical wiring. Its name is probably based off of "circuit" and "tree". Xurkitree's hands are made out off copper wiring, and it has feet designed to look like plugs. Its head resembles a spiky lamp or treetop of some sort. Xurkitree also has a tail that extremely resembles an ordinary household plug. Its white "leaves" are probably cable ties, used to hold various cables and cords together.
Xurtitree possesses an internal organ that generates high amounts of electrical energy. It can release those energies in high amounts, reaching up to 1,000,000 volts. Xurkitree have been known to anchor its limbs on the ground, imitating a tree in order to absorb electricity.
Like all Ultra Beasts, Xurkitree has an unique ability known as Beast Boost. This ability increases Xurkitree's highest stat (Special Attack) by one stage.
Xurkitree and Poipole are the only single-typed Ultra Beasts.
Xurkitree, along with Xatu and Xerneas is one of only three Pokémon whose name starts with "X".
Xurkitree's spiky white crown and black and white striped body bear a slight resemblance to Team Skull leader Guzma. This fits the theme of the Ultra Beasts resembling human characters in the story (with Pheromosa resembling Lusamine, Kartana resembling Gladion, Nihilego resembling Lillie and Buzzwole resembling Kiawe). It also resembles Steven Stone to some degree.
Its attack animation consists of it planting all five of its limbs on the ground, thus resembling a plant of some sort. It however normally walks on only two.
Xurkitree is the tallest Electric-type Pokémon.
It also has the highest base Special Attack stat of all Electric-type Pokémon.
Xurkitree seems to be based off of tangled wires, Christmas lights, and a tree.
Xurkitree is a play on the word "circuitry" . It may also incorporate "tree".