Relict endemic plant of the Mountain Crimea — Sobolewskia sibirica (Willd.) P.W. Ball (Brassicaceae) ex situ South Crimea

Populations of the relict endemiс of Crimean flora – Sobolewskia sibirica (Willd.) P.W. Ball – were localised on talus in upper belt of Mountain Crimea. The species was introduced in lower belt, where the plants were cultivated in subtropical climate. The rhythm of development of species (two years monocarpic) in modern natural condition and in culture has been studied. In subtropical climate in South Coast of the Crimea the plant species are developed on summerwinter- green type. In culture relic species characteristics, latent in natural conditions have been revealed.