Queen Anne's Lace (Daucus carota)
Queen Anne's lace (Daucus carota)

Queen Anne’s Lace

(Daucus carota)

Description

  • Introduced from Europe in the 1700’s.
  • Grows up to 3 to 5 feet in height.
  • White umbel of flowers that starts out curled up and opens as the flowers mature.
  • These white flowers look similar to other species in the Carrot family.
  • A distinguishing feature is the centre flower of a Queen Anne’s Lace umbel will often be purple, red or black.
  • Umbel has a whorl of green bracts underneath.
  • Flowering occurs from July to September.
  • Long taproot, that smells like carrots.
  • Found in gravelly or sandy soils and in wet areas.

Consequences of invasion

  • Displaces native plant species, particularly grasses and forbs.
  • Impacts crop and hay yields in cultivated fields.
  • Produces off-tasting milk in dairy cattle after consuming large quantities.

Integrated Pest Management Options

  • Prevent establishment of this plant by keeping equipment clean to prevent transport of seeds, and maintaining healthy desirable vegetation rather than leaving soil bare.
  • Mow low to the ground after stems elongate but before flowering.
  • Small infestations may be pulled by hand. Wear gloves as this plant can cause skin irritation in some people.
  • Plowing and replanting infested areas will help to decrease the infestation.
  • Chemical treatments may be an option, consult a professional to determine whether this is an option for you.

Additional Resources:

Queen Anne’s Lace | ISCBC

Queen Anne’s Lace | Minnesota Department of Natural Resources

Queen Anne’s Lace | Invasive Plant Atlas of the United States