 Steve Dewey, Utah State University, Bugwood.org | Russian Knapweed (Rhaponticum (Acroptilon/Centaurea) repens) is an invasive weed. Russian knapweed is an aggressive, long-lived perennial that thrives in both irrigated and arid environments, and in cropland, pastures, rangeland, shrubland, and wasteland. It is difficult to control in alfalfa, clover, other forage crops, and pastures. It reduces wildlife habitat and suppresses the growth of other plants. . |
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