Weed maps of the Top-10-Worst
intentionally planted Persistent Exotics,

from a survey of 13 Federal land managers in the Western United States in 1995.
Maps copyright © 1998 by Craig Dremann, co-owner of the Reveg Edge,
Box 609, Redwood City, CA. 94064 (650) 325-7333
This is a supplement to Craig's Juicy Native Grass Gossip Research No. 6
"Weeds & Persistent Exotics on Public Lands"



The maps are arranged by the combined votes of the land managers, and within each map the numbers indicate what ranking each manager gave for that species on their list of the top 10 worst intentionally planted persistent exotic plants.


No. 1. Orchardgrass...................................No. 2. Timothy




No. 3 . Smooth Brome............................No. 4. Intermediate wheatgrass



No. 5. Hard or sheep fescue..................No. 6. Crested wheatgrass



No. 7. Perennial and annual ryegrass...........No. 8. Sweet clovers



No. 9. Pubescent wheatgrass......................No. 10. Tall fescue "Alta"

Updated October 8, 2006