The article says that of the 25 endemic species of the Kugitang flora, 18 species are found in the eastern part of the ridge, i.e. within Uzbekistan. All endemic to the Uzbek part are protected by the Surkhan reserve. This indicator indicates the great importance of the Surkhan reserve in the gene pool of the Kugitang plant diversity.
Nevsky S.A. Materials for the flora of Kugitang and its foothills.-Sat: Flora and systematics of higher plants. -M.-L. USSR Academy of Sciences 1937.p. 199-346.
Kamelin R.V Phlorogenetic analysis of the natural flora of the mountainous Central Asia. L. Science 1973. p 95-96.
Khasanov F. U. Xerophilic tree-shrubby vegetation Kugitang-tau. Abstract. Thesis for the scholarship. step. Cand. Biol. sciences. Tashkent 1987.p. 20.
Key to plants of Central Asia. T: 1-10. Tashkent, Fan, 1968-1993.
Nikitin V.V., Geldikhanov A.M. Key to plants of Turkmenistan. L. Science 1988. From 678.
Ibragimov A.J. Flora of Surkhan State Nature Reserve (Kugitang Range): Author, dis ... cand. biol. sciences. - Tashkent, 2010. 22 p.
The Red Book of the Republic of Uzbekistan. Tashkent: Chinor ENK, 2009.V. 1. - p. 335.
Flora of the USSR. In the 30th vol. M., L.: Ed. USSR Academy of Sciences, 1934-1964.
Flora of Turkmenistan. In the 7th vol. - Ashgabat: Publ. AN Turkmen. SSR, 1932-1960.
Flora of Uzbekistan. In the 6th vol. - Tashkent: Ed. Academy of Sciences of the Uzbek SSR, 1941-1962.