Typha laxmannii Lepech. the new, expansive kenophyte in Poland: Distribution and taxonomy

Abstract

The paper provides data on a new antropophyte species - <em>Typha laxmannii</em> Lepech. which spreads throughout Poland as a hemiagriophyte. Its present distribution in Poland is given on a cartogramme map in a 10×10 km square grid and its geographic element, population numbers and notes on habitats are provided. An identification key to 5 species of the <em>Typha</em> genus, two native, one new which is the topic of this paper, and two which can be expected to be discovered in Poland.