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Butterfly Bush

butterfly bush

Buddleja davidii

Family Name:

Buddlejaceae

Class: B
Other Names:  summer lilac, orange eye; genus also spelled Buddleia
 Why is it a noxious weed? It forms dense thickets, especially along river banks and gravel bars, which crowd out native plants and may alter soil nutrient concentrations. This shrub is difficult to control, can produce seeds during its first year and seeds are viable 3 to 5 years.

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Washington State Weeds