Anacyclus pyrethrum (pellitory, Spanish chamomile, or Mount Atlas daisy) is a perennial herb much like chamomile in habitat and appearance. It is in a different family (Asteraceae) from the plants known as pellitory-of-the-wall (Parietaria officinalis) and spreading pellitory (Parietaria judaica). Medicinally, pellitory root has a pungent efficacy in relieving toothache and promoting a free flow of saliva. It induces heat, tingling and redness when applied to the skin.