Chaudhary, S.A., al-Wa?an?yah, M.?shabah & wa-al-Miy?h, Mal-Wa?an, 1999. Flora of the Kingdom of Saudi Arabia, Illustrated, Ministry of Agriculture & Water, National Herbarium.

Collenette, S. & wa-Inm??ih?, H.?ahal-Wa?an, 1999. Wildflowers of Saudi Arabia, National Commission for Wildlife Conservation and Development (NCWCD).