Citizen Science

Orange hawkweed flowerhead.

Jeffco Weed Spotter

Jeffco Open Space staff manage invasive noxious weeds in our parks. While we are aware of the more common noxious weeds, there are a small number of high priority weeds with very limited populations that we are also tasked with finding. 

During 2020-2021, we will be focused on six high priority weeds. Visitors that provide information on our high priority species play a critical role as stewards and partners in managing our lands. All reports are anonymous.

The Project

Our 2020-2021 Weed Spotter project provides an opportunity for you to report sightings of our high priority noxious weeds when visiting Jeffco Open Space parks. Using your smartphone, you will record and report sightings. The form collects the GPS coordinates and provides an opportunity to also submit pictures.

When taking pictures, be sure to take close-ups of the flowers, leaves, and other distinctive features. And take a picture of the habitat.

We ask that you stay on established trails and that you not remove any plants or plant parts.

The weeds we are focused on for 2020-2021 are:

The information will be used to help our Natural Resources team prioritize their weed control efforts and will contribute to regional and statewide noxious weed awareness and prioritization.

Identification Help

Report a High Priority Noxious Weed Sighting

High Priority Noxious Weed Species Map  coming soon