Invasive Scotch Broom

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health(wwwfs.fed.us/). Scotch Broom as noted above, is an invasive species here in the Pacific Northwest. Scotch Broom is a shrub in the pea family and generally grows 1-2 meters in height and has green stems, small leaves and numerous large flowers that cover the plant. The flowers are usually yellow, but some cultivated varieties of Scotch Broom can have red to white or purple flowers. Their showy flowers are in a shape characteristic to the pea family, with a “wing” petal to each side of an overarching upper “banner” petal and a lower “keel” petal, curved like a boat’s underside. Most of its photosynthesis takes place in its green stems rather than then its leaves. Scotch Broom got its name because it is commonly used in Scotland to make brooms (Boersma, p.33).

Scotch Broom is widespread throughout western Washington, Oregon and British Columbia, and also found in scattered locations in Idaho and eastern Washington and Oregon. It is considered an obnoxious invasive ...

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not that I can find. My family having 1000+ acres here, has a lot of problems with it, so I believe it is an issue that has yet to be conquered and that efforts need to be continued to gain control of this noxious weed.

Below is a map from 2003 showing the dispersion of the invasive scotch broom in the Washington State; you should realize that this invasive plant has spread tremendously since this study.

PICTURES OF SCOTCH BROOM

Discusssion: Why I chose to write about the invasive scotch broom species is to help one review just how distribution, intentional and unintentional, of a once admired ornamental shrub, can cause detriment to natural ...

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