From Zelda Wiki, the Zelda encyclopedia
Fire Babas are flower-like enemies found in the Fire Sanctuary in Spirit Tracks.
Characteristics and Behavior
Fire Babas look like a simple bulb, but when approached, the creature sprouts out of the bulb. Fire Babas, when in flower form, can spit a fire ball that does a quarter of a heart damage. If Link gets close, however, they will try to eat him. If they swallow the young hero and if the stylus is not rubbed back and forth, they will cause about a heart and 3 quarters of a heart damage. When the Fire Baba is sliced once, its bulb part will fly off. Even though it looses its fire ability, when it eats Link, it does greater damage.
Using the Whip on a Fire Baba will risk pulling the bulb towards Link, getting swallowed in the process. Without its stem, Fire Babas are more versatile and cannot be stunned by a Boomerang. Boomerangs are only effective when the Fire Baba still has a stem. Bombs and arrows are very effective.