The roots of some species of Lithospermum afford a lac for dyeing and painting.
"The Commercial Products of the Vegetable Kingdom" by P. L. Simmonds
Lithospermum officinale (Grey Millet) .
"Handbook to the Severn Valley Railway Illustrative and Descriptive of Places along the Line from Worcester to Shrewsbury" by J. Randall
Lithospermum fruticosum, 165. prostratum, 165.
"Hardy Perennials and Old Fashioned Flowers" by John Wood
Lithospermum callosum, Vahl 125.
"Southern Arabia" by Theodore Bent