Abstract
The article gives a geobotanical characterization of plant communities of the population of the rare, endemic plant Rosa iliensis in the floodplain of the river Ili. The assocations of three cenopopulations and the percentages of vegetation cover in this population, the vegetation cover of tiers, are also described. Within each cenopopulation, a 10×10 transect was constructed and the age structure of the vegetation cover in it was determined. In the upper reaches of the river or the state of life of Rosa iliensis can be called satisfactory. Because here Rosa iliensis blooms and bears fruit every year. However, not a single seedling of this plant was found within the populations. This indicates that Rosa iliensis in natural conditions propagates by seeds extremely rarely and its renewal is mainly vegetative, root offspring. Taking this into account, we suggest that the floodplain of the upper Ili river, where the population of Rosa iliensis is found, conduct constant monitoring work and thereby keep the state of its population under control. In addition, we offer Rosa iliensis Chrshan. to be introduced in the main botanical garden of Almaty and the Ili Experimental Botanical Garden of the Balkhash district of Almaty region.
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