Lively Dreamleaf

Don't do this quest.
It's not worth it.
You're better off farming 20 dreamleaf manually.

For every herb you need to clear at least 3-4 mobs around it.

So for people who are as confused as I was, what you are looking for is herb nodes called Lively Drealmleaf. In my ~20 min it took to get 10 of them, I was not able to loot it from any mob, including herbing their corpses, which leads me to believe they are from the node only.

For completion of this quest, you get 30 dreamleaf. This quest is in no way worth the effort or time since collecting dreamleaf can be done faster, do another world quest.

To add to the annoyance of this quest, each node has 2-5 mobs that will aggro you upon trying to get to it. As a Blood DK, this isnt too bad, but I can see it meaning death for other classes.

Finally, I couldnt confirm whether this was bad instancing or if other players are able to loot the same nodes you are, but often times the nodes I was trying to get to would disappear and I would be unable to collect. This is compounded by the fact that with CRZ and on my already populated server (Proudmoore) there was easily ~20 herbalists trying to do this quest at the same time.

TLDR: skip this quest. collect drealmleaf in open world. it will save you time.

Personally I didn't mind killing those mobs because most of them could be herbalized for more dreamleaf; what did bug me is that, at least for me, the map kept showing nodes where the lively dreamleaf was already harvested and was no longer there.