A brief overview of the resource that is being documented a short-term expedition to the Regional Landscape Park "Tylihulski" . As of today, the total area of the park is over 8 thousand hectares (8195.4 ha), with approximately 4755.3 ha occupied by the waters of the estuary (Kolomiyets, 2004). Overall, the regional landscape park "Tylihulski" was created with the purpose of preserving and rational use of the coastline of the Tiligulsky estuary and its adjacent waters, as the park's territory encompasses areas rich in flora and fauna, serving as a valuable habitat for waterfowl. In the estuarine waters, which are part of the wetland area "Tylihulski" over 200 bird species have been documented, including representatives listed in the Red Book of Ukraine. Among them are species such as Platalea leucorodia, Aythya nyroca, Himantopus himantopus, Haematopus ostralegus, and others. The floristic complexes on the territory include over 400 plant species, many of which are rare or endangered and listed in the Red Book of Ukraine. These include the snowdrop Galanthus elwesii, Stipa ucrainica, Stipa pulcherrima, Stipa asperella, Stipa lessingiana, Tulipa schrenkii, Tulipa hypanica (Kolomiyets, 2004; Regional report... Mykolaiv Regional State Administration 2022). The studied territory of the regional landscape park "Tylihulski" is located in the southwestern part of the Mykolaiv region on the eastern coast of the Tylihul estuary (in its lower part) and its waters on the border with the Odesa region (46.635250, 31.208700) within the Koblivska territorial community. The length of the territory from north to south ranges from 1.7 to 2 km, and from west to east is approximately 1.8 km. This dataset contains 131 occurrences of 119 species of vascular plants. The nomenclature of the dataset follows “Nomenclatural Checklist of vascular plants of Ukraine” (Mosyakin & Fedoronchuk 1999), with minor edditing the Plants of the World Online with minor edditing GBIF Backbone Taxonomy and GBIF species matching tool and minor taxonomic corrections.