Dirty Dozen Poster



This educational poster was developed by the Oklahoma Invasive Plant Council to illustrate to Oklahomans the worst, both economically and ecologically, invasive plants in our state.


Species depicted on the poster are:


Cheatgrass - Bromus tectorum

Chinese Privet - Ligustrum sinense

Eastern Redcedar - Juniperus virginiana

Field Brome -  Bromus arvensis

Hydrilla - Hydrilla verticillata

Japanese Honeysuckle - Lonicera japonica

Johnsongrass - Sorghum halepense

Musk (Nodding) Thistle - Carduus nutans

Russian Thistle - Salsola tragus

Saltcedar - Tamarix spp.

Sericea Lespedeza - Lespedeza cuneata

Siberian Elm - Ulmus pumila

Yellow Bluestem - Bothriochloa ischaemum


Paper copies of the poster are currently unavailable.


OK Invasives is the informational and citizen science project website for the Oklahoma Invasive Plant Council and their partners.


Email : okipc@ou.edu

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