There's a bit of inconsistency I have found seeking the ingredients for Taevish's Elixir, as illustrated in the following images of the Quest mouseover, item inventory, and attempting to return to the campsite to complete the quest:

According to the quest mouseover (by mousing over the quest icon on the quick list to the left of parties, cities and quests), I need ingredients including "flesh of the timber warg" ... however, once I have a Warg Pelt (pelt being flesh), attempting to return to the camp to present the ingredients gives an indication that you need all of the elixir's ingredients, and for the timber warg ingredient it specifies a "carcass" instead of "flesh."

I am guessing I need a carcass, not a pelt, but the Quest quick icon mouseover creates confusion on this.  Further, the only Wargs I have encountered to the east have been Darkling Riders, and all I got from them was a Pelt. :/

Also, when a list includes individual item descriptors that include a comma, it is generally best to use a semicolon for a list item delineator instead of a comma for clarity and the initial semicolon should properly be a full colon thus for the mouseover text:  [  "Seek out the elixir's ingredients:  the grain Amaranta, which may be found to the north; flesh of the timber warg, who travel in packs to the east; and the blood of an ogre, one of which is known to dwell in the southwest." ]