Species of Tulipa subgenus are predominate in medium-altitude mountains. T. vvedenskyi Z. Botsch. is exactly medium-altitude mountainous specie and is found only in some places of Kuramin chain (left bank of Ahangaran river); T. butkovii Z. Botsch. with red stamina filaments is found in several vegetation points in Chatkal chain and T. tschimganica Z. Botsch.’s areal is also bounded by Uzbek part of Chatkal chain.

Wider altitudinal amplitude is characteristically known for T. kaufmanniana which is met in upper regions of submountain regions till uplands, on all chains of the Western Tien-Shan. It shows unique polymorphism in the nature. These species are endemics of Western Tien-Shan.

In 1971, Z.P.Botschanceva and A.Kh. Sharipov described T. uzbekistanica Z. Botsch. & Scharipov from the south of Uzbekistan. This specie shows the features of the endemic species of the Western Tien-Shan from Spiranthera section (sensu A.I. Vvedenskyi) in 500 km. Anthers dissect slowly during 2-3 days and curl the same way as anthers of T. kaufmanniana, T. tschimganica and T. dubia. From close Pamir-Alay species T. uzbekistanica differs by hard covers of the bulbs, low habitus, orange-red flower with dark brown spot in the bases and anthers which open and curl very slowly. The same features differ T. uzbekistanica from T. fosteriana Irv. and T. ingens Hoog from T. carinata Vved.

These two species are hard to differentiate from each other. Specialists differ them by bulb covers’ texture and of the inner surface of the bulb cover. The bulb cover of T. dasystemon is papyraceous and naked on the inner surface or only at its apex with a few pressed hairsprings, whereas T. dasystemonoides has more solid covers with densely woolly hairsprings of the inner surface. In some places, these two representatives of alpine slopes, on the moist gorges get down into the middle upland belt, where are formed colorful yellowish landscape.

T. orithyoides from first of all differs from two previous forms by white leaflets of perianth and by web-hairy lowering of bulb covers. Furthermore, it is distinguished by the geography of propagation. Vegetation places of T. orithyoides are located on the subalpine belt of the Chulbair mountains, on the border with Tadzhikistan.

T. dubia Vved. from Tulipa subgenus is met at the joint of middle-mountain and high-mountain of Western Tien Shan, and also characterized by yellow color of petals, large flowers and very similar to T. kaufmanniana.

Tulipa fosteriana – Samarkand mountains
Tulipa vvedenskyi – Kurama and Chatkal mountains
Tulipa butkovii - Chatkal mountain
Tulipa tschimganica - Chatkal mountain
Tulipa affinis – Nurata mountain