pellitory

A perennial weed, Parietaria officinalis; specifically, the wall-pellitory, a small bushy plant growing on old walls, etc., throughout the cooler parts of Europe and Asia.

The feverfew, Chrusanthemum parthenium (see feverfew); also, the other chrysanthemums of the group often classed as Phyrethrum. The sneezewort, Achillea Ptarmica, has been called wild or bastard pellitory.

A composite plant (Anacyclus Pyrethrum) of the Mediterranean region, having finely divided leaves and whitish flowers. The root is the officinal pellitory, and is used as an irritant and sialogogue. Called also bertram, and pellitory of Spain.

The feverfew (Chrysanthemum Parthenium); -- so called because it resembles the above.

The common name of the several species of the genus Parietaria, low, harmless weeds of the Nettle family; -- also called wall pellitory, and lichwort.