{{Short description|Species of legume}} {{Use dmy dates|date=March 2020}} {{Speciesbox |image = Cytisus multiflorus.jpg |status = LC |status_system = IUCN3.1 |status_ref = <ref name="iucn status 20 November 2021">{{cite iucn |author=Rivers, M.C. |date=2017 |title=''Cytisus multiflorus'' |volume=2017 |article-number=e.T83750589A86135941 |doi=10.2305/IUCN.UK.2017-3.RLTS.T83750589A86135941.en |access-date=20 November 2021}}</ref> |genus = Cytisus |species = multiflorus |authority = (L'Hér.) Sweet |synonyms = {{Collapsible list | {{Plainlist | style = margin-left: 1em; text-indent: -1em; | *''Cytisus albus'' <small>(Lam.) Link</small> *''Cytisus lusitanicus'' <small>Willk.</small> *''Genista alba'' <small>Lam.</small> *''Genista madagascariensis'' <small>Baker</small> *''Spartium multiflorum'' <small>L'Her.</small> }} }} |synonyms_ref = <ref>{{cite web |url=http://www.theplantlist.org/tpl1.1/record/ild-8771 |title=The Plant List: A Working List of All Plant Species |access-date=3 April 2014}}</ref> }}
'''''Cytisus multiflorus''''' is a species of legume known by the common names '''white broom''',<ref name=BSBI07>{{BSBI 2007 |accessdate=17 October 2014 |df=dmy-all}}</ref> '''white spanishbroom'''<ref>{{PLANTS|id=CYMU3|taxon=Cytisus multiflorues|accessdate=17 January 2016}}</ref> and '''Portuguese broom'''.<ref>{{cite web |title=Cytisus multiflorus (L'Her.) Sweet |url=https://www.catalogueoflife.org/data/taxon/33RZR |publisher=Catalogue of Life |access-date=28 March 2021}}</ref>
==Distribution== It is native to the Iberian Peninsula, especially frequent in the western half in central and northern interior Portugal<ref>{{cite web |title=Cytisus multiflorus (L'Hér.) Sweet |url=https://flora-on.pt/#/1Cytisus+multiflorus |publisher=Flora-On |access-date=28 March 2021}}</ref> and central and northern western Spain.<ref name="iberica">{{cite web |title=Cytisus multiflorus |url=http://www.floraiberica.es/floraiberica/texto/pdfs/07_13%20Cytisus.pdf |publisher=Flora Iberica |access-date=28 March 2021}}</ref> It is better known as an introduced species on other continents, including Australia and North America, where it has become a weed in agricultural land and an invasive species in natural habitats.
==Description== ''Cytisus multiflorus'' is a shrub growing up to {{convert|0.8|m}} or {{convert|1.5|m}} in sprawling height,<ref name="iberica" /> with a broomlike array of many five-angled flexible branches. Leaves appear mainly on lower branches, each made up of three leaflets. Some leaves grow on the upper branches; these are generally made up of a single leaflet. Each leaflet is under a centimeter long and may be linear to oblong in shape and coated in soft silvery hairs.
The white, pea-like flower is up to a centimeter long and is often marked with a dark pinkish streak near the base. The fruit is a hairy legume pod up to {{convert|3|cm}} long. The pods turn black with age and dehisce explosively to release their four to six seeds away from the parent plant.
==Invasive species== This plant is a serious noxious weed of agricultural fields and a colonizing invasive plant in wild lands in parts of Australia and California,<ref>[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?3691,3896,3897 Jepson]</ref> where it was first introduced as an ornamental shrub for its prolific white flowers. It is still sometimes grown and sold for landscaping purposes despite its status as a pest plant, with new industry and public education programs resulting.<ref>{{cite web|url=http://www.weeds.gov.au/publications/guidelines/alert/pubs/c-multiflorus.pdf|title=Weeds in Australia|publisher=Australian Weed Management|access-date=24 November 2010|archive-url=https://web.archive.org/web/20110216200354/http://www.weeds.gov.au/publications/guidelines/alert/pubs/c-multiflorus.pdf|archive-date=16 February 2011}}</ref><ref>{{cite web|url=http://www.dfg.ca.gov/invasives/ |title=What are invasive species and why are they a problem?|publisher=Calif. Invasive Species Program|access-date=24 November 2010}}</ref>
==Gallery== <gallery> Arribes Duero - Hacia el Mirador de las Janas.jpg Cytisus multiflorus 2.JPG Cytisus multiflorus 4.JPG Escoba - Aliste.JPG </gallery>
==References== {{Reflist}}
==External links== *{{Commons category-inline|Cytisus multiflorus}} *[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?3691,3896,3897 Jepson Manual Treatment – ''Cytisus multiflorus'' (introduced species)] *{{GRIN}} *[http://www.cal-ipc.org/ Cal-IPC: California Invasive Plant Council – homepage] *[http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Cytisus+multiflorus ''Cytisus multiflorus'' – Photo gallery]
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multiflorus Category:Flora of Spain Category:Flora of Portugal Category:Matorral shrubland Category:Endemic flora of the Iberian Peninsula