Bro flower

From The DS Ultimate Wiki

Ahh, good old Bro Flower... otherwise known as Fire Flower are one of Mario's most popular attack item. They appear in Super Mario bros, New Super Mario Bros and all other Mario Bros games.

Fire Flower Uses

In New Super Mario Bros, the Fire Flower is an orange yellow flower that if you touch, you turn into Fire Mario and be able to throw fire. It gets all your enemies in one go, exept Dry Bones who cannot be defeated with a Fire Flower and the bosses who need quite a few shots of fire.

Fire Flower Appearance

The Fire Flower is a round flower with a green stem with two leaves and a round, white center with yellow, then orange around it. It has got two eyes as most Mario items do and they sometimes hop or wiggle when you come near. But in a game called Super Mario World, it looks mostly like an orange, weird eyed tulip. Hopefully they do not look like that today...