| Flower: | Knapweed, Spotted | | Family: | Sunflower | | Genus / Species: | Centaurea biebersteinii | | Notes: | Formerly classified as C. maculosa, this roadside beauty is actually a noxious weed that is rapidly spreading out of control. | | Photo: | 
North Umpqua Highway, Umpqua National Forest - - - October 5, 2003 | | Guide: | Northwest Weeds by Taylor / Wildflowers of the Columbia Gorge by Jolley / e-Nature Field Guides |
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