Arafeh, R.M.; Sapir, Y.; Shmida, A.; Iraki, N.; Fragman, O.; Comes, H.P. (January 2002). "Patterns of genetic and phenotypic variation in Iris haynei and I. atrofusca (Iris sect. Oncocyclus = the royal irises) along an ecogeographical gradient in Palestine and the West Bank". Mol. Ecol. 11 (1): 39–53. doi:10.1046/j.0962-1083.2001.01417.x. PMID11903903. S2CID34650319.
Arafeh, R.M.; Sapir, Y.; Shmida, A.; Iraki, N.; Fragman, O.; Comes, H.P. (January 2002). "Patterns of genetic and phenotypic variation in Iris haynei and I. atrofusca (Iris sect. Oncocyclus = the royal irises) along an ecogeographical gradient in Palestine and the West Bank". Mol. Ecol. 11 (1): 39–53. doi:10.1046/j.0962-1083.2001.01417.x. PMID11903903. S2CID34650319.
Arafeh, R.M.; Sapir, Y.; Shmida, A.; Iraki, N.; Fragman, O.; Comes, H.P. (January 2002). "Patterns of genetic and phenotypic variation in Iris haynei and I. atrofusca (Iris sect. Oncocyclus = the royal irises) along an ecogeographical gradient in Palestine and the West Bank". Mol. Ecol. 11 (1): 39–53. doi:10.1046/j.0962-1083.2001.01417.x. PMID11903903. S2CID34650319.
Archibald, Jim (September 1999). "Silken Sad Uncertain Queens"(PDF). Bulleting of the Alpine Garden Society. Vol. 67. Archived from the original(PDF) on 2016-08-18. Retrieved 9 July 2016.
Archibald, Jim (September 1999). "Silken Sad Uncertain Queens"(PDF). Bulleting of the Alpine Garden Society. Vol. 67. Archived from the original(PDF) on 2016-08-18. Retrieved 9 July 2016.