Site icon 4-County Cooperative Weed Management Area

Call-for-Data Species Observations

The 4-County CWMA “Call-for-Data” project is a region-wide monitoring effort to gather more information on suspect weeds, as well as monitor for occurrence or spread and inform risk assessments for these species.

Our “Call-for-Data” species list includes “newly establishing or expanding invasive or naturalized weed species within the 4-County CWMA region.” These species are non-native, uncommon, and have a high likelihood of being invasive in the CWMA region (i.e., known to be invasive nearby or in similar climates). Some of our Call-for-Data species may have already been nominated for ODA or WSDA noxious weed status, are on a monitor list, or are under consideration for nomination. Information collected here may be used to justify future inclusion on a state noxious weed list.

The purposes of this project is to:

    1. Provide information on distribution, abundance, or biology for a species that may or may not be common but is likely under-reported.
    2. Increase the chance of finding the first record (or verify existence and identification) of a species of great concern that is not yet known from the area.
    3. Encourage reporting by fostering a regional data sharing network.
    4. Provide information to support a species-specific control effort.

Data collection is carried out through partnerships between 4-County CWMA partners and stakeholders as well as by community/citizen scientists. Please scroll down for our various reporting options!

2022 Call-for-Data Species List:

We encourage and accept data on all invasive and naturalizing species. However, to ensure a coordinated monitoring effort, we highlight approximately 4-5 species each year.

Current distributions for these species are shown below in the 2022 Call-for-Data Species Distribution Map.

2021 Call-for-Data Species List :

We encourage and accept data on all invasive and naturalizing species. However, to ensure a coordinated monitoring effort, we highlight approximately 4-5 species each year. Please share our Call-for-Data 2021 Info Sheet!

Current distributions for these species are shown in the below 2020 Call-for-Data Species Distribution Map (courtesy of Lindsey Wise). — Updated Jan. 2021 Distribution Maps, by Occurrence Year and by Report Year.

Data reporting methods:

We encourage participants to adopt our 4-County CWMA Invasive Plant Data Standards for  observations. You can submit your weed observations on a number of different online and mobile platforms, as described below.

Please also consider reviewing Oregon Department of Agriculture’s current watch list and submitting supporting information about infestations to inform formal noxious weed risk assessments. Also, consider nominating species for noxious weed status.

For new county records of these species, please consider vouchering populations to support taxonomic, mapping, and floristic analysis based on voucher data rather than observation data. We recommend submitting vouchers to each of the following herbariums: Portland State University Herbarium (HPSU), Oregon State University Herbarium (OSC), and the University of Washington Herbarium (WTU). Vouchering instructions for each institution are available (HPSU, OSC, WTU).

Archive for Call-for-Data Species List:

Archive for ODA’s Weed Watch List:

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