Fire Flowers are static objects found in Urgoz's Warren and The Deep. Fire Flowers shoot projectiles within earshot that deal 25 fire damage and cause burning for 5 seconds on the target. Clicking on a Fire Flower turns it off.
In The Deep, Fire Flowers placement are typically spread out strategically, using one to cover a good-sized area to hinder the players.
In Urgoz's Warren they are placed in clusters on cliff ledges outside of player's reach, and thus cannot be turned off. However, they only shoot projectiles when there are monsters around the bridge. The amount of flowers clustered together makes fighting or running away from any monsters on the bridge quite a challenge, even if there are spots on the bridge where none can hit.