Russian knapweed can distribute rapidly and may be very competitive with indigenous species. Russian knapweed will minimize forage output to close to zero as the location normally gets a monoculture. 5 inches lengthy with several flowers over a raceme. The two species have an in depth creeping rhizomatous root program http://caidenxhqwd.bluxeblog.com/16604040/the-definitive-guide-to-weed-seeds-cimarron-hills