Genista corsica is a plant endemic to Corsica and Sardinia where it is associated with sunny open landscapes and poor stony soil. 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, 20âÂÂ100 cm tall. Leaves inconspicuous, simple, elliptical and slightly hairy beneath. Flowers yellow 7âÂÂ12 mm long. Calyx teeth as long as tube. Pod narrow-oblong, 12âÂÂ20 mm long constricted between the seeds. Flowers from May to June. Exposed rocky and bushy slopes in lowland and lower mountains.