Introduction of rare species of Spiraea L. in the Botanical Garden of the Institute of Biology of Komi SC UB RAS

УДК 582.639.3:069.029(470.13-25)

Abstract

The Botanical Garden of the Komi Institute of Biology of the Scientific Center of the Ural Branch of the Russian Academy of Sciences is one of the largest northern introduction centers. For more than 70 years, the garden’s collection has collected more than 500 taxa of woody and shrubby plants, including rare and protected species of various categories and conservation status. Genus Spiraea L. in the garden’s collection includes 48 taxa. Five species of Spiraea L. collection included in the lists of protected plants of the Red Book of different regions of Russia are Spiraea crenata Pall., Spiraea humilis Pojark., Spiraea hypericifolia L., Spiraea media F. Schmidt, Spiraea trilobata L. Plants of these species are represented by several geographical specimens of different ages. Phenological observations are carried out for plants to identify the seasonal rhythm of development, the possibilities of seed and vegetative reproduction are studied, winter hardiness is determined. Plants of four rare Spiraea species are hardy, durable, regularly bear fruit with the formation of germinating seeds and are classified as promising for cultivation in the North. Further study is required for Spiraea hypericifolia plants. The introduction of rare and endangered plant species can serve as an additional measure to preserve their gene pool.