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River to River CWMA

River to River CWMA

The River to River Cooperative Weed Management Area (CWMA) is a partnership between 12 federal and state agencies, organizations, and universities aimed at coordinating efforts and programs for addressing the threat of invasive plants in Southern Illinois. The CWMA was formally established in 2006 (view our MOU) and addresses both terrestrial and aquatic invasive plant species through collaborative projects and activities focused in Education / Public Awareness, Early Detection and Rapid Response, Prevention, Control and Management, and Research. The CWMA is grant funded and projects-based. Our goal is to cooperatively address the short and long-term effects of non-native invasive plants across jurisdictional boundaries within the 11 southern counties of Illinois.
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41 Images of 15 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5476840 eastern redcedar Juniperus virginiana
5476839 eastern redcedar Juniperus virginiana
1373013 slash pine Pinus elliottii Male cones.
5126005 Virginia pine Pinus virginiana
2189063 ponderosa pine Pinus ponderosa
5177057 Florida nutmeg Torreya taxifolia
5177058 Florida nutmeg Torreya taxifolia
1342083 Table Mountain pine Pinus pungens
1342084 Table Mountain pine Pinus pungens Two needles per fascicle.
1342082 Table Mountain pine Pinus pungens
1342087 Table Mountain pine Pinus pungens Two needles per fascicle.
1334034 western red cedar Thuja plicata Washington state
1119402 spruce pine Pinus glabra
1119400 spruce pine Pinus glabra
5177059 Florida nutmeg Torreya taxifolia
2190067 western red cedar Thuja plicata
1119379 slash pine Pinus elliottii
2189064 ponderosa pine Pinus ponderosa
5126006 Virginia pine Pinus virginiana
2125027 eastern hemlock Tsuga canadensis
1119378 slash pine Pinus elliottii
2122057 baldcypress Taxodium distichum
1119403 spruce pine Pinus glabra
1380428 Virginia pine Pinus virginiana
1380424 Virginia pine Pinus virginiana
1380368 shortleaf pine Pinus echinata
1380360 shortleaf pine Pinus echinata
1380366 shortleaf pine Pinus echinata
1362026 longleaf pine Pinus palustris
1380362 shortleaf pine Pinus echinata
1362025 longleaf pine Pinus palustris
1342130 Virginia pine Pinus virginiana
1373015 slash pine Pinus elliottii Pollen dispersing.
1373016 slash pine Pinus elliottii Pollen dispersing
1373012 slash pine Pinus elliottii Male cones.
1373037 spruce pine Pinus glabra
1380148 Fraser fir Abies fraseri Along mountaintop
1380100 eastern white pine Pinus strobus
1380101 eastern white pine Pinus strobus
1373023 pine Pinus spp. Pollen covering the top of the car.
1342086 Table Mountain pine Pinus pungens Comparison with Virginia pine foliage (left), which also has two needles per fascicle with quarter for size comparison. Table Mountain pine needles (right) are larger and stiffer.

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