Caption:
Digital improved high quality reproduction: Thlaspi arvense, known by the common name field pennycress, is a flowering plant in the cabbage family Brassicaceae / Acker-Hellerkraut, Acker-Täschelkraut, Acker-Pfennigkraut, Ackertäschel, Angehöriger der Kreuzblütengewächse.