Ferroseed (Japanese: テッシード Tesseed) is a dual-type Grass/Steel Pokémon. It evolves into Ferrothorn starting at level 40.
Ferroseed is similar in appearance to a durian. Both are spherical "plants" that have many thorns around their bodies that are used for protection. Ferroseed have metallic bodies with band-like stripes and green thorns. They also have two small yellow eyes with black pupils.