Wild carrot, or Queen Anne's lace, is a widespread and difficult to control nuisance weed across most of western Oregon. It is prolific in roadsides, poorly managed pastures, post-harvest forestry sites, and other areas with intermediate disturbance levels, although it is adaptable enough to become weedy in many other sites as well. East of the Cascades, distribution is more sporadic, although there are certainly areas with dense populations. Wild carrot poses a potential contamination risk to carrot seed production, and is a high priority weed in wildlands and other...