Genus Thlaspi is a small genus of flowering plants in the family Brassicaceae. The word 'Thlaspi' is derived from the Greek word 'thlaspis', meaning 'pouch'. This refers to the shape of the seed pods in the plant. Alternate synonyms for the genus Thlaspi include the species name 'Iberis', which is derived from the Greek word 'iber', meaning 'a piece of land surrounded by water'. Other synonyms include 'Crucifera', which refers to the shape of the flowers resembling a cross, and 'Cochlearia', which comes from the Latin word 'cochlear', meaning 'spoon', referring to the shape of the seed pods. Despite the variations in the names, they all refer to the same genus of plants.