Materials for the flora of the specially protected natural area "Fescue-feather grass virgin steppe zone" (Bol’shechernigovskij district, Samara region)

The paper presents the results of studying the floral composition of the specially protected natural area «Fescue-feather grass virgin steppe zone». A summary of the flora is given, including 261 species of vascular plants belonging to 172 genera and 50 families. Biomorphological and ecological analyses were carried out for a comprehensive description of the flora. In addition, the study of the rare component made it possible to identify 29 rare plant species, of which 4 representatives are listed in the Red Book of the Russian Federation (Eriosynaphe longifolia (Fisch. ex Spreng.) DC., Iris pumila L., Tulipa schrenkii Regel, Stipa pennata L.) and 29 species are included in the Red Book of the Samara region ( Adonanthe volgensis (Steven ex DC.) Chrtek et Slavíková, Allium tulipifolium Ledeb., Artemisia pauciflora Weber ex Stechm., Astragalus macropus Bunge, A. ucrainicus Popov et Klokov, A. wolgensis Bunge, Ephedra distachya L., Eriosynaphe longifolia (Fisch. ex Spreng.) DC., Euphorbia undulata M. Bieb., Ferula caspica M. Bieb, Ferula tatarica Fisch. ex Spreng, Gagea bulbifera (Pall.) Salisb., Glycyrrhiza glabra L., Goniolimon elatum (Fisch. ex Spreng.) Boiss., Iris pumila L., Lepidium coronopifolium Fisch. ex Ledeb., Linaria incompleta Kuprian., Nepeta ucranica L., Onosma iricolor Klokov, Ornithogalum fischeranum Krasch., Palimbia turgaica Lipsky ex Woronow, Pastinaca clausii (Ledeb.) Calest., Plantago cornuti Gouan., P. maxima Juss. ex Jacq. , P. salsa Pall., Stipa pennata L., Trinia hispida Hoffm, Tulipa schrenkii Regel, Valeriana tuberosa L.). The results obtained indicate the uniqueness of this territory and allow it to be used as a reference zone for remote sensing of vegetation cover.