The Mithridatium Bush is found in the form of a shrub or hedge with numerous tightly-closed pods. When any living creature approaches within 5 feet the pods open, revealing exotic deep crimson flowers edged with black. These blossoms exude soporific pollen which can affect all living creatures within a 5-foot radius. Those within the radius must save vs. Poison or fall into a dreamless sleep, with grogginess lasting a full hour after waking (-2 on all attack rolls and saving throws, and -10% for Thief abilities). The bush is not harmed by blunt or piercing weapons or by most missile weapons, but suffers full damage from slashing or chopping weapons.

Folklore hints at danger if the leaves or branches of this bush are burned, but any actual effects are left for the GM to decide.