Open Journal of Forestry, 2023, 13, 75-91 https://www.scirp.org/journal/ojf ISSN Online: 2163-0437 ISSN Print: 2163-0429 DOI: 10.4236/ojf.2023.131006 Jan. 20, 2023 75 Open Journal of Forestry Vascular Flora from Ecoton Zones of the Slatioara Secular Forest Marius Dan Șandru 1,2* , Camelia-Maria Golea 1,2 , Dumitru Dorel Blaga 1 1 Genebank “Mihai Cristea”, Suceava, Romania 2 Stefan cel Mare University of Suceava, Suceava, Romania Abstract The purpose of this study is to generate essential scientific information re- garding the floristic composition and the structures of the ecotone vegetation in the natural forest Codrul Secular Slătioara, because so far no such studies have been carried out in this reserve. Also, the results of this study provide important data, which can be the basis for the development of strategies for the conservation and sustainable use of some herbaceous species, valuable due to genetic and socio-economic, respectively of a regular forest monitor- ing program. The floristic studies were carried out in the 2020 to 2021 vegeta- tion season. Based on the specialized literature, plant species were identified and then processed from the point of view of bioforms, floristic elements and ecological indices. The economic categories in which the identified species fall were also analyzed. Thus, a total of 292 species belonging to 46 botanical families were identified and their distribution by ecosystems is as follows: in the forest, 90 species were identified, in the lands adjacent to the forest, in the meadows, 202 species were found and in the area of border, 120 species of vascular plants were identified. Most of the species identified in the study area are hemicryptophytes, heliophiles, and eurytherms, which grow on dry to mod- erately moist, eurytrophic soils. More than 50% of the identified species belong to several categories of useful plants (fodder, medicinal, melliferous, edible). Keywords Flora, Border, Bioforms, Floristic Elements, Ecological Indices, Economic Categories 1. Introduction In the virgin forests, the phylogenetic development of the species, of their in- traspecific variability, was not influenced by the artificial selection generated by How to cite this paper: Șandru, M. D., Golea, C.-M., & Blaga, D. D. (2023). Vas- cular Flora from Ecoton Zones of the Slatioara Secular Forest. Open Journal of Forestry, 13, 75-91. https://doi.org/10.4236/ojf.2023.131006 Received: September 30, 2022 Accepted: January 17, 2023 Published: January 20, 2023 Copyright © 2023 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access