title: Iris sibirica (Iridaceae) on the territory of Western Ukraine
abstract: The state of Iris sibirica L. in the national botanical reserve "The Valley of the Irises" is characterized. In particular, it was found that I. sibirica should be classified in the group of Euro-West Siberian, and not as a Euro-Siberian or even Eurasian species. Phenological rhythms and peculiarities of fruiting have been studied. It is established that the duration of the vegetation period of I. sibirica lasts 187–246 days. The most important stages of the reproductive cycle of I. sibirica (st
journal: Biosystems Diversity