Cytisus nigricans, the black broom, is a species of flowering plant in the subfamily Faboideae of the family Fabaceae.

[2][3][4] Growing 3–5 ft (0.91–1.52 m) tall, it is a slender deciduous shrub with erect branches.

Masses of brilliant yellow, slightly fragrant pea-like flowers appear in long racemes on the current year's growth in summer and early autumn.

[5] The more compact cultivar 'Cyni', to 1 m (3.3 ft), has gained the Royal Horticultural Society's Award of Garden Merit.

[6][7] It is hardy but prefers a sheltered position in full sun, with poor soil.