Stevens County Noxious Weed Control Board
This web site will help you identify & control noxious weed with information and photographs to aid you.

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Corn gromwell
Lithospermum arvense L. or   Buglossoides arvensis     
Borage Family

Key identifying traits

  • Leaves are lance shaped and without stalks

  • Plants grow anywhere from 4-24 tall and are usually slender

  • Flowers are white or bluish-white

  • Flowers are funnel shaped and have 5 petals

  • Fruit consists of 4 small nutlets that are grayish brown and pitted

  • Plants are covered with short bristly hairs

Biology and ecology

  • An annual plant spreading by seeds

  • It is usually the most troublesome in winter grains

  • This plant was introduced from Europe and now grows widespread through the U.S.

  • Grows along road sides and in fields as well as  other disturbed sites


NOTE: This plant is listed for identification purposes only. We do not suggest removal of the plant from any sites where it is not in competition with crops.

Prevention Learn to identify plants; start monitoring early in the season

Biological No known biological control in our area

Cultural Plant competitive grass or other cover crop

Mechanical Tilling is effective but plants are often too small for mowing to work

Chemical Corn gromwell is listed as susceptible to many herbicides: refer to the PNW Weed Management handbook for specific chemical recommendations

 2004 Ben Legler, WTU Herbarium

2004 Ben Legler, WTU Herbarium



 Photo by Bernd Haynold,

Where found
Scattered throughout Stevens County but usually not a problem except in crops especially winter grains.

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Last Edit: March 25, 2015

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