| CAI (S-Ra-Ge) |
| CAI |
| CAI (38) |
| Boulos, L. 2009. Flora of Egypt Checklist, Revised annotated edition, Al Hadara Publishing, Cairo, Egypt |
| Täckholm, V. 1974. Students' Flora of Egypt ed.2. Cairo University |
| El Hadidi, M.N.& Fayed, A. 1994/95. Materials for Excursion Flora of Egypt (EFE). Taeckholmia 15 |
| Boulos, L. 2000. Flora of Egypt, vol.2. Al Hadara publishing, Cairo, Egypt |
| El Kordy, A. 2015. Two subspecies of Galium setaceum (Rubiaceae) in Egypt.Phtologia Balcanica 21(1): 29–35, |