| James R. Allison - Georgia Department of Natural Resources |
| Robert L. Anderson - USDA Forest Service |
| Lloyd Andres - USDA Agricultural Research Service |
| California Department of Food and Agriculture Archive |
| Great Smoky Mountains National Park Resource Management Archive - USDI National Park Service |
| Montana Statewide Noxious Weed Awareness and Education Program Archive |
| Ohio State Weed Lab Archive |
| Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| The Dow Gardens Archive |
| The Nature Conservancy Archive |
| University of Alaska - Fairbanks Cooperative Extension Archive |
| University of Idaho Archive |
| USDA APHIS PPQ Archive |
| USDA Agricultural Research Service Archive |
| USDA NRCS Archive |
| Utah State University Archive |
| Washington State University Archive |
| Jerry Asher - USDI Bureau of Land Management |
| Mark Atwater - Weed Control Unlimited, Inc. |
| Stephen Ausmus - USDA Agricultural Research Service |
| Douglas Barbe - California Department of Food and Agriculture |
| Chuck Bargeron - University of Georgia |
| Scott Bauer - USDA Agricultural Research Service |
| Elizabeth Bella - USDA Forest Service |
| Vince Belleci |
| L.L. Berry |
| Ronald F. Billings - Texas Forest Service |
| Bernd Blossey - Cornell University |
| Ted Bodner - Southern Weed Science Society |
| Nanna Borcherdt - Sitka Conservation Society |
| Zelimir Borzan - University of Zagreb, Croatia |
| Sarah Braun - Beaver Creek Reserve |
| Patrick Breen - Oregon State University |
| Allen Bridgman - SCDNR |
| Kerry Britton - USDA Forest Service |
| Karen Brown - University of Florida |
| Steve M. Brown - University of Georgia |
| Charles T. Bryson - USDA Agricultural Research Service |
| Gary Buckingham - USDA Agricultural Research Service |
| John D. Byrd - Mississippi State University |
| Kenneth Calcote - Mississippi Department of Agriculture and Commerce |
| Kim Camilli - Texas Forest Service |
| David Cappaert - Michigan State University |
| John Cardina - The Ohio State University |
| Gerald D. Carr - Carr Botanical Consultation |
| Richard Carter - Valdosta State University |
| Richard A. Casagrande - University of Rhode Island |
| Ted D. Center - USDA Agricultural Research Service |
| Ken Chamberlain - The Ohio State University |
| William M. Ciesla - Forest Health Management International |
| Dan Clark - National Park Service |
| Dell O. Clark - California Department of Food and Agriculture |
| Alfred Cofrancesco - U.S. Army Corps of Engineers |
| Nancy Coile - Florida Department of Agriculture and Consumer Services |
| Bill Cook - Michigan State University |
| Eric Coombs - Oregon Department of Agriculture |
| G.A. Cooper - USDA-PLANTS Database |
| Victor Cordova - City of Houston, Urban Forestry Division |
| Mark Crosby - University of Georgia |
| Stanley Culpepper - University of Georgia |
| Randy Cyr - GREENTREE Technologies |
| Mark Czarnota - University of Georgia |
| USDA PLANTS Database - USDA NRCS PLANTS Database |
| Thomas B. Denholm - New Jersey Department of Agriculture |
| Steve Dewey - Utah State University |
| Carol DiSalvo - USDI National Park Service |
| Faith Duncan - USDA Forest Service |
| Donna R. Ellis - University of Connecticut |
| Terry English - USDA APHIS PPQ |
| Chris Evans - River to River CWMA |
| Troy Evans |
| Wendy VanDyk Evans |
| John W. Everest - Auburn University |
| Wilson Faircloth - USDA Agricultural Research Service |
| Amy Ferriter - South Florida Water Management District |
| Fred Fishel - University of Missouri |
| Barry Fitzgerald - USDA Agricultural Research Service |
| Alison Fox - University of Florida |
| Nancy Fraley - USDI National Park Service |
| Michael Frank - Galileo Group Inc. |
| Mark Frey - The Presidio Trust |
| Dr. Lynn Clark and Anna Gardner - Iowa State University |
| Elizabeth Goulet - Cornell University |
| Peggy Greb - USDA Agricultural Research Service |
| Jenn Grieser - New York City Department of Environmental Protection |
| William T. Haller - University of Florida |
| Bonnie Harper-Lore - Federal Highway Administration |
| Mary Ellen (Mel) Harte |
| Linda Haugen - USDA Forest Service |
| Catherine Herms - Ohio State University / OARDC |
| Tom Heutte - USDA Forest Service |
| Scott Horn - USDA Forest Service |
| Steve Hurst - USDA NRCS PLANTS Database |
| Kris Johnson - Great Smoky Mountains National Park |
| Robert L. Johnson - Cornell University |
| Mic Julien - Commonwealth Scientific and Industrial Research Organization |
| Loke T. Kok - Virginia Polytechnic Institute and State University |
| Keith Langdon - National Park Service |
| Ricky Layson - Ricky Layson Photography |
| Greg Leach - International Paper |
| Linda Lee - University of South Carolina |
| Stacey Leicht - University of Connecticut |
| Brian Lockhart - USDA Forest Service |
| Chris Lockhart - Florida Natural Areas Inventory |
| Nancy Loewenstein - Auburn University |
| Jeffrey W. Lotz - Florida Department of Agriculture and Consumer Services |
| Steve Manning - Invasive Plant Control, Inc. |
| George Markin - USDA Forest Service |
| Rich Mason - U.S. Fish and Wildlife Service |
| Albert (Bud) Mayfield - Florida Department of Agriculture and Consumer Services |
| Joseph McCauley - U.S. Fish and Wildlife Service |
| Alec McClay - McClay Ecoscience |
| Cheryl McCormick - University of Florida |
| James R. Meeker - USDA Forest Service |
| Leslie J. Mehrhoff - University of Connecticut |
| James H. Miller - USDA Forest Service |
| Carey Minteer - University of Georgia |
| Robert H. Mohlenbrock - USDA NRCS PLANTS Database |
| David J. Moorhead - University of Georgia |
| J. Jeffrey Mullahey - University of Florida |
| Tim Murphy - University of Georgia |
| Ann Murray - University of Florida |
| David Nance - USDA Agricultural Research Service |
| Fred Nation - Weeks Bay National Estuarine Research Reserve |
| Jamie Nielsen - University of Alaska Fairbanks, Cooperative Extension Service |
| Rebecca Norris - USDA APHIS PPQ |
| Joseph O'Brien - USDA Forest Service |
| Richard Old - XID Services, Inc. |
| Katherine Parys - LSU Entomology |
| Tony Pernas - National Park Service |
| J. Scott Peterson - USDA NRCS |
| Todd Pfeiffer - Klamath County Weed Control |
| USDA ARS Photo Unit - USDA Agricultural Research Service |
| Herb Pilcher - USDA Agricultural Research Service |
| Gary L. Piper - Washington State University |
| Dave Powell - USDA Forest Service |
| Victor Ramey - University of Florida |
| John M. Randall - The Nature Conservancy |
| Johnny Randall - North Carolina Botanical Garden |
| Jack Ranney - University of Tennessee |
| Michael Rasy - University of Alaska |
| Norman E. Rees - USDA Agricultural Research Service |
| Byron Rhodes - University of Georgia |
| Barry Rice - sarracenia.com |
| Amy Richard - University of Florida |
| Bob Richard - USDA APHIS PPQ |
| Robert J. Richardson - North Carolina State University |
| Carole Ritchie - USDA NRCS PLANTS Database |
| Scott Robinson - Georgia Department of Natural Resources |
| Wilfredo Robles - Mississippi State University |
| Cindy Roche |
| James Rollins |
| Sara Rosenthal - USDA Agricultural Research Service |
| Philip Rusted - Thurlow Countryside Management |
| Jan Samanek - State Phytosanitary Administration, Czech Republic |
| Julia Scher - USDA APHIS PPQ |
| Howard F. Schwartz - Colorado State University |
| Michael Shephard - USDA Forest Service |
| Clinton Shock - Oregon State University |
| Britt Slattery - U.S. Fish and Wildlife Service |
| Tracey Slotta - USDA NRCS PLANTS Database |
| Lynn Sosnoskie - University of Georgia |
| Forest & Kim Starr - United States Geological Survey |
| Malcolm Storey - BioImages - Virtual Field-Guide |
| Kurt Stueber - Max-Planck-Institute for Plant Breeding Research, Cologne, Germany |
| Jil M. Swearingen - USDI National Park Service |
| Nava Tabak - Invasive Plant Atlas of New England |
| Dennis Teague - U.S. Air Force |
| David Teem - Auburn University |
| Dan Tenaglia - Missouriplants.com |
| Barbara Tokarska-Guzik - University of Silesia, Poland |
| Ian Trueman - University of Wolverhampton, United Kingdom |
| Mandy Tu - The Nature Conservancy |
| Charles Turner - USDA Agricultural Research Service |
| Joy Viola - retired, Northeastern University |
| Richard Webb - Self-employed horticulurist |
| Theodore Webster - USDA Agricultural Research Service |
| Keith Weller - USDA Agricultural Research Service |
| Randy Westbrooks - U.S. Geological Survey |
| Phil Westra - Colorado State University |
| Marisa Williams - University of Arkansas, Fayetteville |
| Max Williamson - USDA Forest Service |
| Wayne Williamson |
| Linda Wilson - University of Idaho |
| Gil Wojciech - Polish Forest Research Institute |
| Paul Wray - Iowa State University |
| Shep Zedaker - Virginia Polytechnic Institute and State University |
