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French broom grass1/16/2024 The leaflets are more or less obovate, entire and 1 2 cm long. The leaves are trifoliolate with petioles 3-5 mm long. These pods are compressed, several seeded, with a callous appendage or strophiole near the base (Munz and Keck 1973).įrench broom: Perennial shrubs, 1-3 meters high with villous branchlets. The brownish black pods, 3.5 to 5 cm long, are villous on the margins only. The flaring calyx is glabrous, about 7 mm long and is two lipped with short teeth. The glabrous banner is ovate to rounded wings are oblong to ovate and the keel is straight or curved. Unlike French or Spanish broom, the yellow flowers of Scotch broom are usually borne solitary in axils, blooming between April and June. The leaflets are obovate to oblanceolate, entire, strigose and 6 12 mm long. The leaves are trifoliolate with petioles 2 10 mm long. 1951) are strongly angled (Hitchcock and Cronquist 1973) and appear naked or almost so (Munz and Keck 1973). The shrubs are 1 2 meters high and deciduous. Scotch broom: Also referred to as Sarothamnus scoparius, this weed is a perennial shrub of the Fabaceae (Leguminosae) family. Scientific Names: Cytisus scoparius and Cytisus monspessulanusĬommon Names: Scotch Broom and French Broom It was introduced into the United States as an ornamental in the early 1800s. Cytisus scoparius is native to western and central Europe. It has been considered a pest weed since the 1920’s on the West Coast. Its nitrogen fixing ability allows it to compete successfully on poor, dry, sandy soils. Ecological Threat Cytisus scoparius occurs along roadsides, coastal sites, disturbed sites, pastures, and dry scrubland. The seeds are small and multi-colored, ranging from green to brown to reddish brown. (2.5-5 cm) long, and will explode when mature forcefully expelling the seeds. Fruit Seed pods are fuzzy on the edges, 1-2 in. Flowers The flowers are bright yellow, resemble sweet pea flowers, and occur singly or in pairs in the upper leaf axils. The leaves are often not noticeable, due to the dark green stems. Foliage Leaves are small, alternate and compound with 3 leaflets. The stems are five-angled and remain green all year. Scotch broom, Scottish broom, English broom, scotchbroom Overview Appearance Cytisus scoparius is a perennial shrub that grows on average from 3.3-9.8 ft.
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