| CAI (S) |
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| CAI |
| CAI (1) |
| Egypt (CR - Critically Endangered) |
| Täckholm, V. 1974. Students' Flora of Egypt ed.2. Cairo University |
| Boulos, L. 2009. Flora of Egypt Checklist, Revised annotated edition, Al Hadara Publishing, Cairo, Egypt |
| Boulos, L. and Hind, D. 2002. Compositae in L. Boulos. Flora of Egypt, vol. 3. Al Hadara publishing, Cairo, Egypt |
| El Hadidi, M.N.& Fayed, A. 1994/95. Materials for Excursion Flora of Egypt (EFE). Taeckholmia 15 |
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