It is a common constituent of garrigue and maquis communities.

Genista corsica is an erect or spreading intricately branched shrub with stout lateral spreading spines, 20–100 cm tall.

Leaves inconspicuous, simple, elliptical and slightly hairy beneath.

Pod narrow-oblong, 12–20 mm long constricted between the seeds.

Exposed rocky and bushy slopes in lowland and lower mountains.