Washington Native Plant Society.
Okanagan Basin Water Board (Canada). Okanagan Water Wise.
Invasive Plants Association of Wisconsin (IPAW).
One of the basic principles of invasive plant management is early detection. To that end, IPAW is sponsoring a reward program to encourage and provide incentive for citizens of the state to look for and report prohibited invasive plants.
North Carolina Native Plant Society.
River Alliance of Wisconsin.