The effect of changes in environmental conditions on the morphology of Sparganium natans L. (Typhaceae) in the taiga zone of European Russia

Abstract

The study presents the results of the analysis of the morphology of vegetative and generative organs of Sparganium natans L., its seed production, ecology and phytocenology on the material collected in the wetland areas of the taiga zone of European Russia in 2006, 2011–2016. S. natans is a freshwater oligosaprobic species, found both in mesoeutrophic and in oligomezotrophic water bodies with an oscillating water level. The change in the depth of growth of S. natans leads to the formation of four ecological forms: terrestrial, emergent, submerged with leaves floating on the surface, completely submerged deep­water sterile. However, regardless of the formation of a particular ecological form, only one biomorph is characteristic of S. natans.

Keywords

• least bur-­reed
• distribution
• ecological form
• life form
• vegetative and generative organs
• seed productivity
• ecological scale
• community