If you buy a broom, you should consider that this plant is unfortunately a poison - all Genista varieties contain alkaloids, therefore if you cut the broom, you should not do this without wearing gloves.
Deciduous thorny shrub of 2m tall with yellow clustered flowers. Small hairy leaves. It prefers stony, fresh soils with lime. It is found on sandstone soils, in garrigues and oak groves.