WoWDB

Throw a trap at the target location that makes a path of thorny weeds up to 20 yds long between where you threw the trap from and the targeted location. Trap will exist for up to 30 sec.

When an enemy approaches the trap, an area of bristleweed sprouts up for 10 sec, dealing [ 20% of Attack Power ] Nature damage every 1 sec and snaring enemies by 10%, stacking up to 5 times. If this reaches 5 stacks on an enemy, they are rooted for 6 sec.