Native to (or naturalized in) Oregon:
- Deciduous (or evergreen) shrub or small tree, 15 ft (5 m) tall, spreading with age to a width equaling height, pubescent branches. Leaves alternate, trifoliate (3 leaflets), silver-gray green, 4 cm wide and up to 10 cm long, pubescent. Flowers bright yellow, pea flower shape, 2 cm, pineapple-scented, in dense, upright cone-shaped clusters to 10 cm long; blooms in late spring-early summer. Fruit is a linear 5.5 × 1 cm brown pod.
- Sun. New shoots are produced from the base, remove old shoots as needed.
- Reportedly evergreen in Seattle and Portland, Oregon.
- Hardy to USDA Zone 7 Native to Morocco. Introduced to the British nursery trade in about 1922. Received the Royal Horticultural Society's Award of Garden Merit in 1993 (as Cytisus battandieri).
- Argyrocytisus: Gk. argyro, silver, leaves silvery gray; cytisus, Gk. kytisos, a kind of clover or clover-like plant
- battandieri: after Jules Aimé Battandier; French botanist and authority on Algerian plants.