Additions to the vascular flora of the Tyumen region, Western Siberia Author Kapitonova, Olga A. https://orcid.org/0000-0002-6618-7029 Tobolsk complex scientific station of the Ural branch of the Russian Academy of Sciences, 626152, Russia, Tyumen Region, Tobolsk, 15 Academic Yu. Osipov St kapoa.tkns@gmail.com text Acta Biologica Sibirica 2020 2020-10-05 6 339 355 http://dx.doi.org/10.3897/abs.6.e52696 journal article http://dx.doi.org/10.3897/abs.6.e52696 2412-1908-6-339 9FF763A6E92E47F5A081FB6648E1AE7A BF0606D3FEDD5165BD1AD6C2DD4921AE Zannichellia repens Boenn. Material examined. RUSSIA , Tyumen Reg. - Armizonsky distr. • 1.4 km E of Poloe ; 55.7436°N , 67.7998°E ; Lake Suponnoe , shallow water off the SE shore; salinity of the water is 0.3 g /l; 30 Jul. 2019 (Fig. 1 ) . The species is protected in the Tyumen Region ( Yakushev VV 2017 ). In recent years, Z. repens is apparently expanding its area to the north and was recently found in the territory of Tobolsk ( Kapitonova 2018 ).