I knew it was nirnroot - from Oblivion... Collecting nirnroot in Oblivion was cool, because there were a limited amount in the game and there was a related quest, so you learned to listen for the sound and look for the glow. Why does Skyrim track how many you've collected? There's no regular nirnroot quest, just a crimson nirnroot quest (which are not tracked outside of your quest entry). And don't the nirnroot in this game respawn?

* Shakes fist *

I thought you were going to reveal the musical jingle that happens evey now and again for god knows what reason.

Anyone whose beat 'finding your roots' in Oblivion would already know what that is

QFT. But seems to be a lot of people for whom Skyrim is their first TES game....