Robert Weiss has been a botanist for 20 years and more recently an arborist, focusing on vascular and non-vascular plant surveys, noxious weed management, and seed collections. He has performed wetland delineations and tree hazard assessments. He has experience with vegetation surveys along utility lines and technical report writing. Most of his work as a botanist and arborist has been on the West Coast of the United States in Washington, Oregon, and California.

Robert Weiss has been a botanist for 20 years and more recently an arborist, focusing on vascular and non-vascular plant surveys, noxious weed management, and seed collections. He has performed wetland delineations and tree hazard assessments. He has experience with vegetation surveys along utility lines and technical report writing. Most of his work as a botanist and arborist has been on the West Coast of the United States in Washington, Oregon, and California.