A spiny shrub is a type of plant that has sharp thorns or prickles on its stems and leaves. The term can refer to three different species: FURZE (Ulex europaeus), GORSE (Ulex gallii) and SLOE (Prunus spinosa). FURZE is a flowering evergreen shrub native to Europe, GORSE is a flowering evergreen shrub native to western Eurasia, and SLOE is a deciduous shrub native to Europe and western Asia. All three species have sharp thorns and are considered spiny shrubs.