French broom stems are brown with many leaves. Scotch broom stems are five-ridged while French and Portuguese stems have up to ten ridges. Spanish broom stems are bright green, nearly rounded with few leaves. Scotch, Portuguese, and French brooms have trifoliate leaves, those with three leaflets, while Spanish brooms produce single, lance-shaped leaves. The leaves, stems, flower and pod characters characterize the three brooms.ĭistinguishing Spanish, Scotch, Portuguese, and French Brooms: Their short leaves are borne on woody stems with yellow flowers that mature to pea-like pods. But they are genetically separate and unique the scientific name of Spanish broom is Spartium junceum Scotch broom, Cytisus scoparius Portuguese, Cytisus striatus and French broom, Genista monspessulana.īrooms are shrubby perennials with branches that have compact, short shoots resembling whiskbrooms and are suitable for as use as brooms, hence the name. They share a European heritage, native to the British Isles and Western Europe they look similar, have similar growth habits and life cycles. Scotch broom is also known as common broom and Spanish broom as weaver’s broom. There are actually several brooms – Spanish, Scotch (or Scot), Portuguese, and French brooms, all members of the Fabaceae (formerly Leguminosae), legume or bean, family. of Lubbock asks if the floriferous, yellow flowering shrubs in full bloom for the last several weeks are Scotch or Spanish brooms.
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