The Mabari Hound

Near the big fire you should see an NPC called Kennel Master.He's going to ask for your help to cure the sick mabari.

Background
Quest states: "Gather the strange flower from the Wilds The kennel master at the king's camp has a mabari,a hound bred for intelligence and combat ability.It has been poisoned by darkspawn blood.You have muzzled the hound, but the kennel master needs a flower that grows in the Wilds to treat him properly.The flower is white with a red center.

Walkthrough
Head out into the Wilds.As as you pass the injured soldier you should see the "Wilds Flower".Go back to the kennel master and you're done.

Result
After you finish Ostagar you will get a dog that you can name.He will be available as a party member from that point on.