@article{Kostikova_Kuznetsov_Troshkina_Belanova_2019, title={Morphological and taxonomic analysis of the polymorphic complex Spiraea betulifolia ‒ Spiraea beauverdiana in Russia}, volume={5}, url={http://journal.asu.ru/biol/article/view/6353}, DOI={10.14258/abs.v5.i3.6353}, abstractNote={<p>The authors have studied the diversity of genus <em>Spiraea</em> L., <em>Calospira</em> C. Coch section in terms of the morphological characters on the basis of 32 natural populations. The key has been made for the identification of species. Two species of <em>Calospira </em>section spirea grow in the Asian part of Russia (<em>S. betulifolia</em> Pall. and <em>S. beauverdiana </em>C.K. Schneid.), which most probably used to be two ecotypes of the same species some time ago. <em>S. betulifolia </em>Pall. subsp.<em> aemiliana </em>(C.K. Schneid.) H. Hara subspecies grows on the Islands in the Asian part of Russia (Sakhalin and the Kuril Islands). Its distinctive features are small round or spatulate (obovate) lamina and the absence of the inflorescence follicles pubescence, as well as a few metrical characteristics, the average values of which do not overlap with <em>S. betulifolia</em> and <em>S. beauverdiana </em>average values. This taxon has a trend towards stabilization of morphological characteristics, but has not yet sufficiently separated from&nbsp;<em>S. betulifolia</em>.</p&gt;}, number={3}, journal={Acta Biologica Sibirica}, author={Kostikova, V.A. and Kuznetsov, A.A. and Troshkina, V.I. and Belanova, A.P.}, year={2019}, month={Sep.}, pages={22-32} }