The habitats diversity of Lviv Skansen was researched and it sozological value was estimated. On the territory of Skansen, 19 types of habitats belonging to 12 groups of 7 classes have been identified and described. Among them, 14 types have an anthropogenic origin, 3 – semi-natural, and only one – natural. On the territory of the museum were found 2 species of vascular plants listed in the Red Book of Ukraine – Allium ursinum L. and Epipactis helleborine (L.) Crantz, as well as naturalized populations of cultural Crocus sp. and Leucojum vernum L. From the sozological point of view, tree habitats – highly artificial broadleaved deciduous forestry plantations, coniferous forestry plantations and hard water source settlements on tuff and travertine formations – are of the greatest importance. The last one is a new type of habitat for region, barely studied. Currently, only one location is known in the vicinity of Lviv (Bryukhovychi). On the territory of the European Union, this habitat is included in the list of particularly valuable habitats of the NATURA-2000 environmental network. Highly artificial broadleaved deciduous forestry plantations habitats, although formed by non-native species, are currently ongoing through demutation proces. During the years of absence any cuttings or other forms of management, the plantations of Robinia pseudoacacia L. and Aesculus hippocastanum L. were replaced by semi-natural forests from young undergrowth of Betula pendula Roth, Acer platanoides L. and Picea abies (L.) H.Karst. The grass layer in these forestry plantations is represented by fragments of typical nemoral species. Thus, despite the anthropogenic origin of the habitats formed in Lviv Skansen, they play an important role in the conservation and distribution of biodiversity and help maintain the stability of green corridors of sub- and urban areas.

On the base of research florochorology, studing the main herbarion collections (LW, LWKS, LWS) and analisis the literature the checklist of the spontaneous vascular plants for the territory of the Znesinnya Regional Landscape Park has been compiled. Some 727 species from 392 genera, 108 families, 59 orders, 5 classes and 4 divisions are presented from the investigated area. Among them, the most common part (77.7%) belongs to the representatives of the Magnoliopsida class, while the Liliopsida class of representations is significantly less (19.3%). With a wide range of disputes, coniferous trees are stocked less than 3.0% of all types. The species distribution to the leading families and genera have been analysed. For the first time were recorded the present habitats of 30 rare species (15 from the Red Data Book of Ukraine, аnd 15 species are rare in the region). The locations of the rare species with state sozological status (Dactylorhiza incarnata (L.) Soó, Epipactis palustris (L.) Crantz, Listera ovata (L.) R.Br., Lilium martagon L., Orchis militaris L.) were offered for the first time. Two species from addition of the First Bern Convention (Cypripedium calceolus and Pulsatilla grandis) are disappeared on the territory of the park.

Some theoretical and practical aspects of reintroduction and repatriation of rare species into natural conditions (populations) are analyzed in connection with the proposed All-Ukrainian Creative Children Competition "Share snowdrops with the forest – 2022", initiated by the Kyiv Ecological and Cultural Center and the All-Ukrainian NGO Living Planet. It is demonstrated here that, although plant reintroduction may play some role in species conservation, the long-term viability of most reintroduced populations has not yet been properly assessed. This initiative is analyzed in the context of existing methodological and practical aspects of the reintroduction or repatriation process. It is concluded that such initiatives are harmful and unacceptable because they threaten the genetic identity of natural populations and create conditions for potential phytoinvasions and because they violate the Ukrainian legislation.