pepperwort

apilasaniainen

koristekrassi Any of several species of perennial plant in the genus Lepidium (originally specifically dittander, (taxlink)), which is a member of the mustard and cabbage family. (defdate)
1653, (w), The English Physician Enlarged, Folio Society 2007, p. 219:

Our common Pepperwort sends forth somewhat long and broad leaves, of a light bluish-green colour, finely dented about the edges and pointed at the ends ....