yeah the one cast by annelia, it looks like purple vine-type things coiling around you.
in the videos it never hits the kiters, but it hits me pretty much every round of the 4 little bears.
I've never kited Annelia but Ive been on around maybe 30+ succesful Annelia clears in Ragnarok. Being assigned to heal the kiter, I started to pick up on what they were doing. As far as I know, there is no actual root that should be hitting you *every* round of bears.
The bears *do* stun however, when they fall over and die. It is an radius-based aoe, hence why kiting the bears away from the raid is important.
The vine part that you mention, has hit me several times, and I havent been really taken annelia seriously in about over a month, but as I recall, the root/vine thing (has like a white glow, right?) only happens later in the fight, and rarely at that.
Not sure if I've been any help at all, but heres a few tips to salvage this useless post a bit xD
Phoenix Redemption
Soul Bond
Priest immune (if you're about to get hit by bears, also try it for the root)
Magic immune food (for when bears die near you)
Hope something helps lol