From Equestripedia, the Archives of Equestria!
Hanazuki, a Moonflower

A Moonflower is a humanoid alien race from the moons of some far off universe.

The only known Moonflower is Hanazuki, a heroic indiviual whose firmly placed on the side of the good guys, alongside Twilight Sparkle, Optimus Prime and other, equally heroic figures.

Moonflowers have a special relationship with the Hemka.