Russian Knapweed
(Acroptilon repens
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A perennial weed that spreads by root and seed
Grows two to three feet tall
Produces small pink, white, or lavender flowers during summer months
Upper part of root is dark brown to black in color
Flower
(click for larger view)
Leaves
Grows in dense colonies along roadsides, riverbanks, and ditches, and in pastures and waste places
Cut or mow prior to seed set to reduce current year's growth; will not kill plants
Chemical controls are needed
Please click on any picture for a larger view.
Plant
Sue Donaldson
University of Nevada Cooperative Extension
5305 Mill St. Reno, NV 89502
(775) 784-4848 Email:
sue@washoeweeds.org
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