French Broom

Genista monspessulana = Cytisus monspessulanus

© John M. Randall, The Nature Conservancy


© John M. Randall, The Nature Conservancy


Description

French broom is an upright evergreen shrub that can grow to ten-feet tall. The round stems are covered with silvery, silky hair, and the leaves are small and arranged in groups of three. The surfaces of the leaflets are sparsely to densely covered with flattened, short, silvery hairs. The small, yellow flowers are pea-like and clustered in groups of four to ten. The inch-long pods are covered with hair.

Habitat

Coastal plains, mountain slopes, grassland, open canopy forest, and in disturbed places such as river banks, road cuts, and forest clear cuts

Distribution

Western Oregon (abundant along southwestern coast), Washington

Impacts

Degrades habitat quality for wildlife by displacing native plant species and altering microclimate conditions at soil levels, increases intensity and frequency of wildfires, poisonous to livestock

Dispersal Methods

Prodigious seed production, animals, ants, birds, river water, rain wash, mud, road grading or maintenance machinery

Prevention

Look for French broom in disturbed areas

Listings

ODA's B List

Factsheets

California Invasive Plant Council Fact Sheet

Photos

http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Genista+monspessulana

Distribution Map

Distribution in Oregon

Identification Help

Distinguishing Between Broom Species

Other Links

Species Profile from the Oregon Department of Agriculture's Noxious Weed Control Program
Element Stewardship Abstract from The Nature Conservancy's Global Invasive Species Initiative

CWMA Warnings

Upper Willamette