History of becoming and modern distribution of species of genus cattail (Typha L.) of Vyatka-Kama region

Character of modern distribution of species of genus Typha in territory Vyatka-Kama Region is shown. The reasons of rare occurrence of one species and a wide circulation of other species of cattails are certain. Are established the ecology-phytocenosis strategy of species of cattails. It is shown, that for all species R-strategy on the basis of which formation of intermediate variants (CR-strategy) is possible is base. The estimation the succession status of biocenosis with domination the cattails, pioneers carrying out mainly function in dynamics water ecosystem is given.