A new name for extant Salix × longissima T.E. Díaz & J. Andrés (Salicaceae)

Abstract

The genus Salix Linnaeus (1753: 1015) (Salicaceae), comprises about 300–520 species (Chao 1987, Fang et al. 1999, Ohashi 2001, Heywood et al. 2006, Massoumi 2009, Argus et al. 2010), with more than 200 hybrids (Isebrands & Richardson 2014). It is widely distributed in temperate and boreal regions of the Northern Hemisphere and a few species also occur in the Southern Hemisphere (Heywood et al. 2006). Species of Salix are diverse in China (ca. 279 spp., Wang et al. 2015, He et al. 2016), the former Soviet Union (107 spp., Skvortsov, 1999), North America (103 spp., Argus 1997), and Europe (65 spp., Argus 1997). Skvortsov (1999) stated that Salix is most widespread in northern Eurasia, northern North America, and in the mountains of China. All species are trees or shrubs and of economic importance for use as a fragrance additive, biomass production, bioremediation and traditional medicine (Volk et al. 2006, Asgarpanah 2012, Guidi et al. 2013, Maistro et al. 2019).