The article provides information about the localities of Tulipa quercetorum Klokov & Zoz in Ukraine along the western border of its range, using the distribution data from the Middle Dnipro Area obtained in the original research as well as from published sources and herbarium. The ecological peculiarities of the new localities of T. quercetorum in the downstream valley of the Sula River (Poltava Region) and in the valley of the Tyasmyn River (Cherkasy Region) are outlined, based on the descriptions of the vegetation in these habitats. Both local populations are associated with hornbeam-oak forests. The first one has a left-side ontogenetic spectrum and is characterized by a large abundance and density (up to 700 generative individuals per 0,3 ha). The second one has right-side ontogenetic spectrum (up to 50 senile individuals per 0,5 ha). The need to protect new localities of this rare species included into the Red Data Book of Ukraine (2009) is highlighted.

Keywords: Tulipa quercetorum, rare species, locality, protection, Middle Dnipro Area

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