1895 F. W. Oliver et al. tr. A. Kerner von Marilaun II. 410 In rosette-forming succulent plants..the leaves are tongue-shaped or spatulate.
1996 R. Mabey 152/2 Alpine penny-cress, Thlaspi caerulescens, is a neat, rosette-forming biennial or perennial, topped with small bunches of white or purplish flowers.