A. Patzelt, T. Harrison, S. G. Knees, and L. Al Harthy, “STUDIES IN THE FLORA OF ARABIA: XXXI. NEW RECORDS FROM THE SULTANATE OF OMAN”, Edinburgh J. Bot., vol. 71, no. 2, pp. 161–180, Jun. 2014, doi: 10.1017/S0960428614000067.