Ribombee is a tiny, insectoid Pokémon with a large head, slightly smaller body, and thin arms and legs. It is covered in fluffy, yellow hair and has a white face and lower body, and a tuft of hair on its back. It has big eyes with one white and one brown square speck in the center. Over its eyes are white hairs similar to eyelashes, and it has two black antennae. Around its neck is a brown scarf with a needle-like projection on the front. Two wings nearly as large as its body sprout from its back. The wings are white with three brown loop designs near the base. Its four thin limbs have bulbous hands or feet. It is one of the shortest Pokémon in existence.
Ribombee uses its fluffy hair to hold pollen it collects from flowers. Rain turns its hair dirty and its pollen damp, so it only visits fields if the weather will remain clear. When storms are on the horizon, Ribombee hide in tree hollows and wait stock-still. The pollen and nectar its collects is used to form balls called "Pollen Puffs". These balls can be used as food or relieve tiredness with a soothing effect. The Alolan people sell Pollen Puffs as valuable nutritious supplements. When Rimbombee senses a human or Pokémon feeling sad, it will cheer them up using handmade pollen puffs.
A special Ribombee in Alola serves as the Totem Pokémon for the Seafolk Village's Island challenge. This Ribombee possesses an energy that originates from Ultra Wormholes, which takes the form of a golden, flaring aura. This energy is called Z-Power.