Appalachian State University, I. W. Carpenter, Jr. Herbarium

Arkansas Natural Heritage Commission Herbarium

Arkansas State University

Arkansas Tech University Herbarium

Armstrong State University Herbarium

Austin Peay State University Herbarium

Berea College, Ralph L. Thompson Herbarium

Berry College Herbarium

Bridgewater College Herbarium

Burgundy Center for Wildlife Studies, Coopers Cove Herbarium

Campbell University Herbarium

City of Alexandria Herbarium

Clemson University Herbarium

Columbus State University Herbarium

Converse College Herbarium

Delta State University

Duke University

East Carolina University Herbarium

East Tennessee State University, John C. Warden Herbarium

Eastern Kentucky University, Ronald L. Jones Herbarium

Emory University Herbarium

Florida Department of Agriculture and Consumer Services, Division of Plant Industry

Florida State University's Robert K. Godfrey Herbarium

Francis Marion University Herbarium

Furman University, Ives Herbarium

George Mason University, Ted R. Bradley Herbarium

Georgia Southern University Herbarium

Georgia Southwestern State University Herbarium

Henderson State University Herbarium

Hendrix College Herbarium

Highlands Biological Station Herbarium

Institute for Botanical Exploration

James Madison University Herbarium

Longwood University, Harvill-Stevens Herbarium

Louisiana State University Shreveport, D. T. MacRoberts Herbarium

Louisiana State University, Shirley C. Tucker Herbarium

Louisiana Tech University Herbarium

Lynchburg College, Ramsey-Freer Herbarium

Marie Selby Botanical Gardens Herbarium

Marshall University

McNeese State University Herbarium

Mecklenburg County Park and Recreation Herbarium

Middle Tennessee State University

Mississippi Museum of Natural Science Herbarium

Mississippi State University

Morehead State University Herbarium

Murray State University Herbarium

Newberry College Herbarium

Nicholls State University Herbarium

North Carolina Museum of Natural Sciences Herbarium

North Carolina State University Vascular Plant Herbarium

North Carolina Zoological Park

Northern Kentucky University, John W. Thieret Herbarium

Rhodes College Herbarium

Salem College

Silver Bluff Audubon Center Herbarium

Southeastern Louisiana University, Glen N. Montz Herbarium

Southern Research Station Herbarium

Stoneville Weed Science Laboratory Herbarium

Tennessee Technological University Herbarium

Tulane Herbarium

University of Alabama

University of Arkansas at Monticello

University of Arkansas Herbarium

University of Central Arkansas Herbarium

University of Central Florida Herbarium

University of Florida Herbarium

University of Georgia Herbarium

University of Louisiana at Lafayette Ornamental Horticulture Herbarium

University of Louisiana at Monroe Herbarium

University of Mary Washington Herbarium

University of Mississippi, Thomas M. Pullen Herbarium

University of North Carolina at Chapel Hill Herbarium

University of North Carolina Pembroke Herbarium

University of North Carolina, Asheville

University of Richmond Herbarium

University of South Alabama Herbarium

University of South Carolina Salkehatchie Herbarium

University of South Carolina Upstate Herbarium

University of South Carolina, A. C. Moore Herbarium

University of South Florida Herbarium

University of Southern Mississippi Herbarium

University of Tennessee Martin Herbarium

University of Tennessee Vascular Herbarium

University of Tennessee, Chattanooga

University of the South - Sewanee Herbarium

University of West Florida

University of West Georgia Herbarium

Valdosta State University Herbarium

Vanderbilt University Herbarium

Virginia Commonwealth University Herbarium

Virginia Polytechnic Institute and State University, Massey Herbarium

Wake Forest University

West Virginia University Herbarium

West Virginia Wesleyan College, George B. Rossbach Herbarium

Western Carolina University Herbarium

Weymouth Woods Sandhills Nature Preserve Herbarium

William & Mary Herbarium

Winthrop University Herbarium

Arizona State University Vascular Plant Herbarium

Arizona Western College Herbarium

Deaver Herbarium (Northern Arizona University)

Desert Botanical Garden Herbarium

Eastern New Mexico University Herbarium

Grand Canyon National Park

Jemez Mountain Herbarium

Museum of Northern Arizona

Natural History Institute Herbarium

Navajo Nation Herbarium

New Mexico State University Herbarium

Pipe Spring National Monument

San Juan College Herbarium

University of Arizona Herbarium

University of New Mexico Herbarium

US Forest Service Southwestern Region

Arizona State University Fruit and Seed Collection

Canadian Museum of Nature

Albion College

Augustana College

Butler University, Friesner Herbarium

Butler University, Friesner Herbarium, Indiana Plant Atlas

Calvin College

Central Michigan University

Chicago Botanic Garden

Eastern Michigan University Herbarium

Field Museum of Natural History

Grand Valley State University

Hillsdale College Herbarium

Hope College

Huntington University Herbarium

Illinois Natural History Survey

Indiana University Herbarium (Deam Herbarium)

J. F. Bell Museum of Natural History Herbarium

Kent State University Herbarium

Miami University, Willard Sherman Turrell Herbarium

Michigan State University

Morton Arboretum

Northern Illinois University Herbarium

Ohio State University Herbarium

Ohio University, Bartley Herbarium

Seney National Wildlife Refuge

Stover-Ebinger Herbarium (Eastern Illinois University)

University of Cincinnati, Margaret H. Fulford Herbarium

University of Illinois Herbarium

University of Michigan Herbarium

University of Notre Dame, Greene/Nieuwland Herbarium

University of Wisconsin-LaCrosse

University of Wisconsin-Madison, Wisconsin State Herbarium

University of Wisconsin-Milwaukee

University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium

Western Michigan University

Brigham Young University, S. L. Welsh Herbarium

Caliente Field Office, Bureau of Land Management

Eastern Nevada Landscape Coalition

Garrett Herbarium, Natural History Museum of Utah

Intermountain Herbarium (Utah State University)

Nevada Department of Agriculture Herbarium

Southern Utah University

Swaner Preserve and EcoCenter

University of Nevada Herbarium

Zion, Bryce, and Cedar Breaks Herbaria

Academy of Natural Sciences of Drexel University

Carnegie Museum of Natural History Herbarium

Delaware State University, Claude E. Phillips Herbarium

Howard University Herbarium

Maryland Department of Natural Resources

Morris Arboretum of University of Pennsylvania

Muhlenberg College

New York Botanical Garden

Pennsylvania State University Herbarium

Rutgers University, Chrysler Herbarium

Staten Island Museum

Towson University

University of Maryland, Norton-Brown Herbarium

Archbold Biological Station

Austin Peay State University Herbarium

Bennington College Herbarium

BLM Herbarium - Redding FO

Brown University Herbarium

Jemez Mountain Herbarium

Jewell and Arline Moss Settle Herbarium at SUNY Oneonta

Klamath National Forest Herbarium

Mesa Verde National Park

Patuxent Research Refuge - Maryland

Robert F. Hoover Herbarium, Cal Poly State University

Sagehen Herbarium

Santa Cruz Island Reserve Herbarium

Sierra Pacific Industries-Forestry

Tall Timbers Research Station

UCSC Herbarium, Kenneth S. Norris Center for Natural History, University of California, Santa Cruz

University of Vermont, Pringle Herbarium, vascular plants excluding those from New England

Ada Hayden Herbarium (Iowa State University)

Benedictine College Herbarium

Black Hills State University Herbarium

Dickinson State University Herbarium

Missouri Botanical Garden

Santa Cruz Island Reserve Herbarium

University of Alaska Museum

Herbario de la Universidad de Guadalajara

Herbario de la Universidad de Sonora

Herbario del Instituto Politécnico Nacional-Unidad Durango

Herbario Isidro Palacios, Universidad Autónoma de San Luis Potosí

Adams State University Herbarium

Carter Herbarium, Colorado College

City of Boulder

Colorado Mesa University, Walter A. Kelley Herbarium

Colorado State University Herbarium

Fort Lewis College Herbarium

Kathryn Kalmbach Herbarium

Mesa Verde National Park

Rocky Mountain Biological Laboratory

University of Colorado Museum of Natural History Herbarium Vascular Plant Collection

Western State Colorado University

BRIT Philecology Herbarium

E.L. Reed Herbarium at Texas Tech University

Howard Payne University Herbarium

Lundell Herbarium - University of Texas at Austin

Sul Ross University A. Michael Powell Herbarium

Texas Lutheran University Herbarium

University of Louisiana at Monroe Herbarium

University of Texas Herbarium

Vanderbilt University Herbarium

iNaturalist Observations

New York City EcoFlora - iNaturalist Observations

Prairie Fen Biodiversity Project

Madrean Archipelago Biodiversity Assessment Observations

Madrean Discovery Expeditions

Registro de Datos de Avistamiento de Universidad de la Sierra

General Research Observations

Observaciones Generales de Flora del Noroeste de México