@article{Tuttolomondo_Fascella_Licata_Schicchi_Gennaro_La Bella_Leto_Aprile_2018, title={Studies on Sedum taxa found in Sicily (Italy) for Mediterranean extensive green roofs}, volume={13}, url={https://www.agronomy.it/agro/article/view/1077}, DOI={10.4081/ija.2018.1077}, abstractNote={<p>One type of green roof whose function is ecological and environmental rather than aesthetic is the extensive green roof. Many studies have shown that <em>Sedum</em> performs very well compared to other hardy species in substrates of less than 10 cm. It seems that <em>Sedum</em> species are able to survive in very thin substrates; they tolerate extreme temperatures and sudden variations in temperatures, high levels of solar radiation, strong winds, poor substrate fertility and extreme drought. In particular, this paper looks at the potential of a number of species from the Sicilian <em>taxa</em> of the genus <em>Sedum</em> (<em>Crassulaceae</em>), which are considered to be those xerophytes most suited for use in extensive green roof systems for Mediterranean areas. Each taxon was subject to <em>in situ</em> and <em>ex situ</em> observations to gain phenological and ecological data, information on its vegetative propagation capacity and its plant ground cover capacity. The results of this study have led to greater understanding of Sicilian pluriennal <em>Sedum</em> genus entities of potential use in green roof systems in the Mediterranean. The taxa respond particularly well to agamic propagation, showing characteristics suited to nursery production of green roof systems, with the exception of <em>S. amplexicaule</em> subsp. <em>tenuifolium</em>. Growth indices and plant development (ground cover) demonstrated the capacity of a number of <em>Sedum</em> <em>taxa</em> to form a uniform green mantle over time. <em>S. sediforme </em>and<em> S. album</em> subsp. <em>album</em>. showed interesting results, for because of their ability to colonize the substrate, and they could be fundamental in determining the plant structure of the green systems. However, there are also other plants, such as <em>S. amplexicaule</em> var. <em>tenuifolium</em>, and, to a lesser extent, <em>S. dasyphyllum</em> var. <em>dasyphyllum</em> and <em>S. ochroleucum</em>, which are able to contribute to floral diversification and lead to greater biodiversity in the system. These taxa could be used when creating associations of <em>Sedum</em> at lower percentages compared to the structuring species (≤20%).</p>}, number={2}, journal={Italian Journal of Agronomy}, author={Tuttolomondo, Teresa and Fascella, Giancarlo and Licata, Mario and Schicchi, Rosario and Gennaro, Maria Cristina and La Bella, Salvatore and Leto, Claudio and Aprile, Simona}, year={2018}, month={Jan.}, pages={148–154} }