2. Cytisus striatus (Hill) Rothm. (syn.: Sarothamnus striatus (Hill) Samp.) (W-Medit.) – A very rare escape from or relic of cultivation. First discovered on schistous slopes along a motorway in Somme-Leuze in 1992. Also known since the 1990’s from rocky slopes in Chaudfontaine-Tilff (Embourg and Sainval), along with Cytisus multiflorus and Spartium junceum. In 2012 also recorded, possibly for the first time in Flanders, on a small talus slope near motorway E403 in Lichtervelde and since 2015 known from 'Nationaal Park Hoge Kempen' in Maasmechelen. Possibly overlooked elsewhere
Cytisus striatus was initially introduced (sown) on purpose in all its Belgian locations (for erosion control). Like Cytisus multiflorus it is well-established now (in more or less natural habitats) but not (yet) considered to be invasive.
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Selected literature
Aymerich P. (2016) Cytisus infestus i Cytisus striatus (Fabaceae) in Catalonia. Butlletí de la Institució Catalana d’Història Natural 80: 89-91. [available online at: http://revistes.iec.cat/index.php/BICHN/article/view/142812/141714]
Breitfeld M. (2006) Cytisus striatus in Nordostbayern. Hoppea 67: 492-494.
Chater A.O. (1978) Genista hispanica and Cytisus striatus naturalised in Ceredigion. Nat. Wales 16(1): 56-57.
Citharel L. (1985) Un nouveau cytise en Bretagne: Cytisus striatus (Hill). Penn Bed 15. (118): 144-147.
Duncan U.K. (1978) Cytisus striatus (Hill) Rothm. in Britain. Watsonia 12(1): 49.
Dupont P., Godeau M. & Rivière G. (1984) Remarques sur des espèces ibériques d’ajoncs et de genêts semées au long des routes du Morbihan, de Loire-Atlantique et des territoires voisins. Bull. Soc. Sc. Nat. Ouest de la France N.S. 6(3): 125-129.
Galunder R. (1988) Zur Identifikation in Deutschland neu auftretender Cytisus-Arten. Flor. Rundbr. 22(1): 14-17.
Terrisse A. (1992) Note sur la présence de Cytisus striatus en Ariège, suivie de remarques sur les problèmes rencontrés par le botaniste amateur. Bull. Soc. Bot. Centre-Ouest n.s. 23: 39-44.