This article is about the dye produced from the turnsole plant, Chrozophora tinctoria. For other plants sometimes called turnsole, see Heliotropium
Hvalov zbornik, 1404. Illustrated Slavic manuscript from medieval Bosnia. Turnsole was an essential ingredient in some of the pigments used in such illustrations
Turnsole, katasol, or folium was a dyestuff prepared from the annual plant Chrozophora tinctoria.