They are entangled (unless they take 0 fire damage) for:
[roll]1d4[/roll] Rounds.
Entangled
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Breath Weapon (Su): At will Kalinda can choose to create a 15 foot cone or a 30 foot line of fire. This breath weapon deals 2d6 points of fire damage. A reflex save DC 17 halves the damage.
Entangling Exhalation (Su): When Kalinda uses her breath weapon she can choose to enmesh all creatures in its area instead of producing it's normal effect. The breath weapon deals half it's normal damage (minimum 1) however any creature that takes damage from the breath weapon becomes entangled and takes an extra 1d6 points of damage of the same energy type each round at the start of Kalinda's turn. This effect last for 1d4 rounds.