Hillside Path is a random encounter in Dragon Age: Origins. It can be triggered when travelling across the world map with Wynne in your party, after the Warden has had the conversation about abominations with her.
The party is ambushed by darkspawn.
A harmless enough plant on its own, deathroot's thick leaves contain an extract that the Chasind have used to induce hallucinations for centuries. Sufficiently concentrated, it can be made into a deadly poison.
The common name for canavaris, this herb actually has little to do with elves other than being commonly collected and traded to outsiders by the Dalish. It is the primary ingredient in many healing salves.
Use: Chewing elfroot restores a small amount of health, and those with skill can use elfroot to make more potent elixirs.
Leghold Trap (40xp) x3