[Wikipedia] Europe, North Africa, Canary Islands native: Genista linifolia is a species of broom known by the common names Mediterranean broom,[1] needle-leaved broom[2] and flax broom. It is native to southwestern Europe, North Africa, and the Canary Islands. (link added by Mary Ann Machi)

[Cal-IPC] Invasive: Genista linifolia (Mediterranean broom) is a shrub (family Fabaceae) with yellow flowers and thin narrow leaves found in the Channel Islands and north and south coast ranges of California. It is native to the Canary Islands, western Mediterranean and northern Africa. It favors woodlands, grasslands, and riparian and bottomland habitat. It reproduces via seed and is dispersed by animals, water, mud and machinery. Cal-IPC Rating: Watch (link added by Mary Ann Machi)