Species: Russian knapweed (Acroptilon repens)

Growth Form: Perennial

Key Identifying Characteristics: Distinguished from other knapweeds by the pointed papery tips of the floral bracts.

Reproduction: primarily vegetative, also seed

Seed Longevity: 2-8 years

Native To: Eurasia

Effective Control Methods: Use an aggressive monitoring program to detect new infestations. A combination of mechanical, chemical, and biological control and re-seeding is needed to remove an infestation of Russian knapweed.

 

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