"Shroomish is a small Pokémon. It has beady black eyes and a half-triangle-shaped mouth. Its upper body is beige with frilled segments along the bottom and a small opening at the top. There are green spots marking its upper body, while its lower body is completely green. It only has small, round feet. When it senses danger, it shakes its body and scatters toxic spores from the top of its head." 
[From "https://bulbapedia.bulbagarden.net/wiki/Shroomish_(Pok%C3%A9mon)"]