Kalmar "Scotch Laburnum" tana nufin ƙaramin bishiya, wanda kuma aka sani da Laburnum alpinum ko Laburnum alpinum 'Pendulum'. Ya fito ne daga yankuna masu tsaunuka na tsakiya da kudancin Turai kuma ana noma shi sosai a matsayin itacen ado a cikin lambuna da wuraren shakatawa. Itacen yana samar da furanni masu launin rawaya a cikin tseren tsere a ƙarshen bazara ko farkon lokacin rani kuma yana da ganyen fili mai ganye guda uku. Kwayoyin Scotch Laburnum suna da guba idan an sha kuma suna iya haifar da mummunan hali.