Salix xfragilis L. (syn. Salix x rubens Schrank)

Taxonomy: Fam. Salicaceae// Genus: Salix// Species: Salix xfragilis L.

Determined according to the botanical key provided in Flora Europaea (Tutin et al., 1964) as the hybrid between Salix alba and Salix fragilisS. alba x fragilis (Salix x rubens Schrank). In later revisions of the Salix fragilis taxonomy (Belyaeva, 2009) Salix xfragilis L. was lectotypified and this term was applied to the hybrid. The glabrous parent species formerly known as Salix fragilis L. was described as a new species Salix euxina I.V. Belyaeva, rendering the name Salix fragilis L. as misapplied. This taxonomic revisions are accepted by The Euro+Med PlantBase (source: Uotila, 2011).

Distribution: Native to parts of Europe and Asiatic Turkey according to the distribution information provided by The Euro+Med PlantBase (sourse: Uotila, 2011 ).

Habitat: Riparian tree, found alongside rivers.

Lifeform: Tree; phanerophyte – mesophanerophyte according to the Raunkiaer system.

Flowering period: Spring.

Salix xfragilis   – habit. Gorge of “Kochanska” River, 25.04.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – habit. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – crown. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – barnches with new developing twings in spring. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – female catkins. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – male catkins. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – male catkins. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – twings. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – twings with leaves. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – adaxial side of leaf with silky pubescence. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – abaxial side of leaf with silky pubescence. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – abaxial side of leaf with silky pubescence. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – trunk. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – trunk. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.
Salix xfragilis   – trunk. Gorge of “Kochanska” River, 08.05.2021. Photo by Trajche Dimitrovski.

References:

Belyaeva, I. (2009). Nomenclature of Salix fragilis L. and a New Species, S. euxina (Salicaceae). Taxon, Vol. 58 (4), pp. 1344-1348. https://www.jstor.org/stable/27757021

Salix L. Rechinger, K.H. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M., & Webb, D.A. (1964). Flora Europaea. Volume 1. Lycopodiaceae to Platanaceae. Cambridge: Cambridge University Press, pp. 43 – 54.

Uotila, P. (2011): Salicaceae. – In: Euro+Med Plantbase – the information resource for Euro-Mediterranean plant diversity. Published on the Internet http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=32570&PTRefFk=7300000 [Accessed 15.05.2021].

Uotila, P. (2011): Salicaceae. – In: Euro+Med Plantbase – the information resource for Euro-Mediterranean plant diversity. Published on the Internet http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=8000230&PTRefFk=7300000 [Accessed 15.05.2021].

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