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PIMPINELLA TOMIOPHYLLA (WORONOW) STANK. (APIACEAE) – RARE ENDEMIC SPECIES OF THE FLORA OF THE REPUBLIC OF BASHKORTOSTAN

The article presents a review of data on a rare endemic species of the flora of the Republic of Bashkortostan (RB) – Pimpinella tomiophylla (Woronow) Stank. (Apiaceae). The species is included in the third edition of the Red Data Book of the RB [2021] in the following status: category 2 – a species that is declining in abundance and/or distribution; vulnerable species (VU); II priority (Bashkir Cis-Urals). The article provides the following information about the species: conservation status; nomenclature reference; morphological description; distribution in the republic; brief ecological and phytocenotic characteristics; features of biology; modern data on condition of the local population; limiting factors; measures for the protection. The species was first described for science in 1931 from Mount Tratau (RB, Ishimbai district) according to herbarium collections in 1915 and 1926 (LE) [Voronov, 1931; Flora of the USSR, 1950]. In the republic, P. tomiophylla is a poorly studied species and is located within a narrow local range. At present, the species is reliably known only from one point – the territory of the natural monument «Mount Tratau» (UFA) [The Red Data Book…, 2021]. The species occurs in plant communities with typical petrophytic species. It grows mainly in the lower part of the western and southwestern slopes of the mountain. The known population of the species is numerous. In recent years, the recreational load on the populations of rare species on Mount Tratau, including the species P. tomiophylla, has increased, which will inevitably lead to a reduction in the area and number of its population. The necessity of a set of additional measures for the protection of P. tomiophylla in situ and ex situ is substantiated.