Erysimum cheiri (Wallflower) courtesy, Winterthur Museum, DETAIL-Printed textile, 1850-1855, England, Cotton, Bequest of Henry Francis du Pont, 1969.3592
Erysimum cheiri (Wallflower) from Pierre-Joseph Redoute, Choix des Plus Belles Fleurs,1827.
Erysimum cheiri (Wallflower) growing in modern garden. By Pokrajac, GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) via Wikimedia Commons.