shepherd's purse
Thlaspi bursa-pastoris L.
Medicinal Documentation
The powdered leaves and stems put in a little cold water are allowed to stand for a while and the infusion is then drunk. This speedily relieves a pain in the head. The powder may be taken in small quantities without the water; but used in this way, it burns the tongue
Infusion of powdered leaves and stems taken or small quantities of powder eaten for head pains Additional commentary: A cold water infusion of the stems and leaves was drunk for a headache. If taken without water, only a small amount is tolerable, as it burns the tongue.189 Grinnell mentions this plant as well for the same maladies under the name Bursa bursa-pastoris.190 The plant also was called the headache medicine.191
Botanical Reference
Parts Documented: leaves, stems
Distribution: Introduced plant from Europe found in disturbed, waste or cultivated ground; plains to sub-alpine; Alaska to New Mexico