Stevens County Noxious Weed Control Board
This web site will help you identify & control noxious weeds. Conventional & biological control
(BioControl) information and photographs  are here. Maps & related information are included.

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Catchweed bedstraw
Galium aparine L                          
Madder Family

Key identifying traits

  • Flowers are white and inconspicuously small
  • Stems are square which is a trait usually associated with the Mint family
  • Leaves are linear, with bristly hairs, and in whorls of 6 to 8
  • Stems are weak and get easily tangled around legs or other plants
  • Fruits (seed pods) are covered with fine hooked hair and cling to wool, fur, and clothing
  • Plants will grow to 80 inches long
  • Also known as “Cleavers”

Biology and ecology

  • An annual plant reproducing by seed
  • This plant is a native to North America and has been recorded in every state in the U.S. except Hawaii
  • Seeds are mainly spread by animals and people
  • Can be a serious weed in cultivated fields but the main problem isn't competition with crops but difficulty in harvesting when bedstraw becomes tangled with the crop or equipment

Control

Prevention – Learn to identify plants; know your property; do not overgraze pastures

Biological – No known biological control

Cultural –  Planting a competitive crop or ground cover will help

Mechanical – If only a few plants pulling or digging may be the best option, regular mowing at a low height can be effective

Chemical – Several herbicides are on the market that will control bedstraw; easier to treat when plants are young: refer to the PNW Weed Management Handbook for specific chemical recommendations



Photos above and below by Mike Haddock, Kansas Wildflowers & Grasses

 







Copyright 2006 OSU


Where found –
Scattered across all areas of Stevens County.

MSdoc   PDF

 

weedboard@co.stevens.wa.us
Last Edit: December 01, 2011
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