It draws out and controls the hidden power of flowers. The flower Flabébé holds is most likely part of its body.
– Pokémon X Pokédex
Flabébé has 5 different forms, depending on the patch of flowers it was found in. It’s the first new (ie not retroactively made into Fairy type) Fairy Pokemon in the Pokedex.
By size, Flabébé is the smallest Pokemon (tied with Joltik, Cutiefly, Comfey and Cosmoem) at 0.1m (though I don’t think that measurement includes its flower; but I think it should be included because its Pokedex entry says it’s part of its body). It’s also the lightest Pokemon (tied with Gastly, Haunter, Cosmog and Kartana).
It’s currently the only Pokemon with a name in English that has a é in it.
Stat-wise, it has good Sp Def and Sp Atk (for an unevolved Pokemon anyway).