Found on the different versions of the herbalists in Chardok Herbalist house. We were camping the Grand Herbalist for necro epic and also got: Dew Clover, Mist Povar, Flame Fenin, Rune Ellipse, Words Distress, Words Recall, Scales of Veeshan, Yaeths 91, yaeths 61, Bolts of Tallon, Runed Emblem, several other runes and words, a bunch of all sorts of Shaman Alchemy weeds and herbs, and the Etched Signet.
I got one last night off of Druid epic Mob in the swamp of no hope No on knew what is was for. Same mob that drops the froglock essence needed to spawn Faydedar.