[[File:Collinsonia canadens.jpeg|thumb|350px|left|Collinsonia Canadense]]
Other Names: Baume de Cheval, Citronella, Colinsonia, Collinsonia, Collinsonia Canadense, Collinsonia canadensis, Collinsonie, Collinsonie du Canada, Guérit-Tout, Hardback, Hardhack, Heal-all, Horse Balm, Horseweed, Knob Grass, Knob Root, Knobweed, Racine de Pierre, Richleaf, Richweeed, Rich Weed, Stoneroot.<br>Stone root is an herb. It has a strong, unpleasant smell that some people consider overwhelming. The root and rhizome (underground stem) are used to make medicine.
==Special Precautions of Stone Root==
* Taking large amounts of stone root can cause some side effects such as dizziness, nausea, painful urination, and stomach irritation.