Ulex argenteus

Ulex argenteus
	Ulex argenteus in flower in Castro Marim, Portugal
Conservation status
	; Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Genus:	Ulex
Species:	U. argenteus
Binomial name
	Ulex argenteus; Webb

Ulex argenteus is a species of gorse native to southern Portugal (Algarve and Alentejo) in the Iberian Peninsula.

Description

Ulex argenteus is a low-growing shrub with an open branching structure. Branches, stems, and spines are densely covered in short erect hairs, which give the species a silvery colour. Spines are thin and straight or sometimes slightly arched. The calyx is typically 7.5 to 8.5 mm long. [2]

Taxonomy and systematics

Ulex argenteus is a diploid species.[3] Ulex canescens (diploid), and Ulex erinaceus and Ulex subsericeus (both polyploid) have been included in Ulex argenteus in the past, as subspecies or synonyms.[2][4] However, phylogenetic evidence suggests they are not closely related to U. argenteus.[3] [5]

Distribution and habitat

The species is distributed in southern Portugal, growing in both metamorphic and calcareous hills.[2][5]

Conservation

The species has a narrow distribution range but remains common in suitable habitat. As a result, it has been assessed as Least Concern.[1]

References

Buira, A., Carapeto, A., García Murillo, P.G. & Monteiro-Henriques, T. (2016). "Ulex argenteus". IUCN Red List of Threatened Species. 2016: e.T83827824A86136466. doi:10.2305/IUCN.UK.2017-3.RLTS.T83827824A86136466.en. Retrieved 12 March 2022.{{cite journal}}: CS1 maint: multiple names: authors list (link)|date= / |doi= mismatch
Cubas, P. (1999). "Ulex L.". In Castroviejo, S. (ed.). Flora ibérica: plantas vasculares de la Península Ibérica e Islas Baleares: Vol. VII, 1, Leguminosae (Partim). Real Jardín Botánico, CSIC. pp. 212–239. ISBN 84-00-07821-7.
Ainouche, Abdelkader; Bayer, Randall J.; Cubas, Paloma; Misset, Marie-Thérèse (2003). "Phylogenetic relationships within tribe Genisteae (Papilionoideae) with special reference to genus Ulex". In Klitgaard, B.B.; Bruneau, A. (eds.). Advances in Legume Systematics part 10, Higher Level Systematics. Royal Botanic Gardens, Kew. pp. 239–252.
Webb, D.A. (1967). "Some Taxonomic Notes on Ulex sensu lato". Feddes Repertorium. 74 (1–2): 4–6.
Fonseca, J.P.; Pereira, A.; Robalo, J.I.; Neto, C.; Costa, J.C. (20 January 2021). "Ribosomal DNA revealed an extensive role of allopolyploidy in the radiation of Ulex L.". bioRxiv 10.1101/2021.01.20.427424.

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[iucn-1] Buira, A., Carapeto, A., García Murillo, P.G. & Monteiro-Henriques, T. (2016). "Ulex argenteus". IUCN Red List of Threatened Species. 2016: e.T83827824A86136466. doi:10.2305/IUCN.UK.2017-3.RLTS.T83827824A86136466.en. Retrieved 12 March 2022.{{cite journal}}: CS1 maint: multiple names: authors list (link)|date= / |doi= mismatch

[iberica-2] Cubas, P. (1999). "Ulex L.". In Castroviejo, S. (ed.). Flora ibérica: plantas vasculares de la Península Ibérica e Islas Baleares: Vol. VII, 1, Leguminosae (Partim). Real Jardín Botánico, CSIC. pp. 212–239. ISBN 84-00-07821-7.

[ainouche-3] Ainouche, Abdelkader; Bayer, Randall J.; Cubas, Paloma; Misset, Marie-Thérèse (2003). "Phylogenetic relationships within tribe Genisteae (Papilionoideae) with special reference to genus Ulex". In Klitgaard, B.B.; Bruneau, A. (eds.). Advances in Legume Systematics part 10, Higher Level Systematics. Royal Botanic Gardens, Kew. pp. 239–252.

[4] Webb, D.A. (1967). "Some Taxonomic Notes on Ulex sensu lato". Feddes Repertorium. 74 (1–2): 4–6.

[fonseca-5] Fonseca, J.P.; Pereira, A.; Robalo, J.I.; Neto, C.; Costa, J.C. (20 January 2021). "Ribosomal DNA revealed an extensive role of allopolyploidy in the radiation of Ulex L.". bioRxiv 10.1101/2021.01.20.427424.