
BONAP's contributors
Over the past four decades, the following individuals provided valuable contributions.  Although, nearly 50% of the original contributors to my 1980 Checklist are now deceased or retired, I continue to honor them here by listing their names and associated areas of specialization.  They, along with many others have improved BONAP's efforts and assisted in building our international plant database.
  
Repositories visited by BONAP or from which plant materials and data have been exchanged
The following herbaria, museums, special collections and other repositories of vascular plants have been visited, consulted, or have provided valuable county-level records for our National Plant Atlas.
The invaluable contributions of the following 384 individuals cannot be overstated. Tens of thousands of new county-level records have been added to the Atlas because of their collections. Equally important, thousands of erroneous reports have been eliminated. Although I have not always agreed with their conclusions, without their contributions, this Atlas would be hopelessly incomplete and far less accurate. I thank them all.
In the early 2000's, I purchased a Nikon slide scanner and initiated a scanning campaign that has spanned ten years. Although the original scanner has been replaced twice, nearly 200,000 slides have been scanned. The vast majority of these slides were contributed generously by hundreds of individuals. BONAP's current image collection contains nearly 300,000 images. Approximately, 100,000 of these are illustrated on our current websites, with the remaining 200,000 to be added later this year. Our goal is to provide quality images for all North American plant taxa as part of our North American Digital Flora and accompanying Floristic Synthesis software. We are extremely grateful to all who have willingly provided their images. Each contributor is credited here for his or her contributions.
WE WELCOME YOUR HELP. When assembling an image gallery this large, it is very easy to misidentify a plant or incorrectly link a scientific name to an image. Therefore, we welcome greatly any corrections. We shall soon include a list of plants for which we have no images or for which we need replacement images. If you would be willing to contribute photos, we would welcome them greatly. Please do not hesitate to contact us.
| PTERIDOPHYTA | CONVOLVULACEAE | OXALIDACEAE | 
| Barrington, David S. | Austin, Daniel F.  |    Eiten, George  |   
| Mickel, John T. | Chao, Jew-Ming  |    Denton, Melinda F.  |   
| Smith, Alan R.  |    Lourteig, Alicia  |   |
| Wagner, Warren H. Jr. | CORNACEAE | |
| Windham, Michael D.  |    Eyde, Richard H | PANDANACEAE | 
| Stone, Benjamin C. | ||
| ADIANTACEAE | CRASSULACEAE | |
| Tryon, Rolla M.  |    Beauchamp, R. Mitchel  |    PAPAVERACEAE | 
| (Notholaena) | Clausen, Robert T.  |    Kiger, Robert W.  |   
| Denton, Melinda F.  |    (Papaver) | |
| CYATHEACEAE | Moran, Reid | Ownbey, Gerald B.  |   
| Tryon, Rolla M.  |    (Argemone) | |
| CROSSOSOMATACEAE | ||
| ISOETACEAE | DeBuhr, Larry E.  |    PASSIFLORACEAE | 
| Taylor, W. Carl  |    Prigge, Barry A.  |    Goldman, Douglas H.  |   
| LYCOPODIACEAE | CUCURBITACEAE | PEDALIACEAE | 
| Beitel, Joseph M.  |    Jeffrey, C.  |    Bretting, Peter K.  |   
| Whitaker, Thomas W.  |    Hevly, Richard H.  |   |
| PARKERIACEAE | ||
| Lloyd, Robert M.  |    CYPERACEAE | PHYTOLACCACEAE | 
| Ball, Peter W.  |    Hardin, James W.  |   |
| GYMNOSPERMAE | (Carex) | (Phytolacca) | 
| Little, Elbert L. Jr. | Carter, Richard  |    |
| (Cyperus) | PIPERACEAE | |
| CUPRESSACEAE | Castaner, David  |    Bornstein, Allan J.  |   
| Adams, Robert P.  |    (Carex) | Burger, William C.  |   
| (Juniperus) | Core, Earl L.  |    St. John, Harold  |   
| Bartel, James A.  |    (Scleria) | |
| Vasek, Frank C.  |    Denton, Melinda F.  |    PITTOSPORACEAE | 
| (Juniperus) | (Cyperus) | St. John, Harold  |   
| Zanoni, Thomas A.  |    Fairey, John E. III | |
| (Scleria) | PLANTAGINACEAE | |
| EPHEDRACEAE | Hermann, Frederick J.  |    Bassett, I. John  |   
| Benson, Lyman  |    (Carex) | Rahn, Knud | 
| Jones, Stanley D.  |    ||
| PINACEAE | Kral, Robert  |    PLUMBAGINACEAE | 
| Critchfield, William B.  |    (Bulbostylis, Fimbristylis, Fuirena) | Luteyn, James L.  |   
| Charlet, David | Mastrogiuseppe, Joy  |    |
| (Carex) | POACEAE | |
| ANGIOSPERMAE | Naczi, Robert F.C.  |    Aiken, Susan G.  |   
| (Carex) | (Festuca) | |
| ACANTHACEAE | Reznicek, Anton A.  |    Allred, Kelly W. | 
| Thomas F. Daniel | (Carex) | (Aristida) | 
| Meagher, Martha B.  |    Schuyler, Alfred E.  |    Aulbach-Smith, Cynthia A.  |   
| Wasshausen, Dieter C.  |    (Scirpus and segregate genera) | (Chloris, Eustachys) | 
Smith, S. Galen  |    Barkworth, Mary E.  |   |
| (Eleocharis, Scirpus, and segregate genera) | Baum, Bernard R.  | |
| ACERACEAE | Strong, Mark  |    Beetle, Alan A.  |   
| Delendick, Thomas J.  |    Svenson, Henry K.  |    von Bothmer, Roland  |   
| (Eleocharis) | (Hordeum) | |
| ACORACEAE | Thieret, John W.  |    Brandenburg, David  |   
| Thompson, Sue | (Cyperus) | Brunken, Jere  |   
| Tucker, Gordon C.  |    Campbell, Julian  |   |
| AGAVACEAE | (Cyperus) | (Elymus) | 
| Gentry, Howard S | Zika, Peter  |    Carlson, Jack R.  |   
| Laurie , Robbins, R.  | (Pseudoroegneria) | |
| (Yucca) | CYRILLACEAE | Cayouette, Jacques | 
| Verhoek-Williams, Susan E.  |    Thomas, Joab L.  |    (Arctophila, Dupontia, Schizachne, Vahlodea) |   
| Church, George  |   ||
| ALISMATACEAE  |    DIAPENSIACEAE | Crampton, Beecher  |   
| Beal, Ernest O.  |    Primack, Richard B.  |    Crins, William J.  |   
| (Sagittaria) | Tiffney, Wesley N.  |    (Alopecurus, Milium, Ventenata) | 
| Wooten, Jean W.  |    Darbyshire, Stephen J.  |   |
| DROSERACEAE | (Arctophila, Danthonia, Dupontia, Schizachne, Vahlodea) | |
| AMARANTHACEAE  |    Donald E. Schnell | Hal R. DeSelm | 
| Mears, James A.  |    (Andropogon, Bothriochloa, Dichanthelium, Schizachyrium) | |
| EBENACEAE | de Wet, James  |   |
| (Gomphrenoideae) | White, Frank  |    (Bothriochloa, Cynodon, Dichanthium, Echinochloa, | 
| Reed, Clyde F.  |    Eleusine, Pennisetum, Setaria, Sorghum, Triticum, | |
| Sauer, Jonathan D.  |    EMPETRACEAE | Zea, Zizania) | 
| (Amaranthus) | Eshbaugh, W. Hardy  |    Dewey, Douglas R.  |   
| (Triticeae) | ||
| ANACARDIACEAE | ERICACEAE | Freckmann, Robert W.  |   
| Gillis, William T.  |    Dudley, Theodore R.  |    (Dichanthelium, Panicum) | 
| Young, David A.  |    (Rhododendron) | Greene, Craig W.  |   
| Ebinger, John E.  |    (Calamagrostis)  |   |
| ANNONACEAE | (Kalmia) | Guala, Gerald F. II | 
| Kral, Robert  |    Hardin, James W.  |    (Neyraudia) | 
| (Asimina, Deeringothamnus) | (Kalmia) | Harvey, LeRoy H. | 
| Hickman, James C.  |    Harvey, M.J.  |   |
| APIACEAE | (Menziesia) | Holmgren, Arthur H. | 
| Constance, Lincoln  |    Kloet, Sam P. Vander | Kellogg, Elizabeth A.  |   
| Hartman, Ronald L.  |    (Vaccinium) | (Poa) | 
| Krahn, Kathy  |    Koch, Stephen D.  |   |
| APOCYNACEAE | Prince, Martha  |    Krajina, Vladimir J.  |   
| Norman, Eliane M.  |    (Rhododendron) | (Festuca, Vulpia) | 
| (Vallesia) | Skinner, H.T.  |    Laing, Charles C.  |   
| (Rhododendron) | (Ammophila) | |
| AQUIFOLIACEAE | Stevens, Peter F.  |    Lonard, Robert  |   
| Clark, Robert B.  |    Uttal, Leonard J.  |    (Vulpia) | 
| Clark, Ross C.  |    (Vaccinium) | Pavlick, Leon E.  |   
| Dudley, Theodore R.  |    Wells, Philip V.  |    (Festuca) | 
| Krakow, Gregory A.  |    (Arctostaphylos) | Peterson, Paul  |   
| (Ilex) | Wilbur, Robert L.  |    Pyrah, Grant L.  |   
| (×Agroelymus, ×Agrohordeum, Agropyron, ×Agrositanion) | ||
| ARACEAE | ERIOCAULACEAE | Reeder, Charlotte  |   
| Cornellier, Normand  |    Kral, Robert  |    Reeder, John R.  |   
| Huttleston, Donald G.  |    Moldenke, Harold N.  |    Riggins, Rhonda  |   
| Nicolson, Dan H.  |    (Sporobolus) | |
| Thompson, Sue A.  |    ERYTHROXYLACEAE | Rogers, Blaine D.  |   
| Plowman, Timothy C.  |    (Puccinellia) | |
| ARALIACEAE | Scholz, Hildemar  |   |
| St. John, Harold  |    EUPHORBIACEAE | (Bromus) | 
| Burch, Derek  |    Snow, Neil  |   |
| ARECACEAE | Huft, Michael J.  |    (Diplachne, Hawaiian Grasses) | 
| Glassman, Sidney F.  |    Ingram, John  |    Soreng, Robert J.  |   
| Hodel, Donald R.  |    Mayfield, Mark H.  |    (Poa) | 
| Moore, Harold E. Jr. | Webster, Grady L.  |    Spellenberg, Richard W.  |   
| Robert W. Read | Stieber, Michael T.  |   |
| FABACEAE | (Ichnanthus) | |
| ARISTOLOCHIACEAE | Barneby, Rupert C.  |    Terrell, Edward E.  |   
| Pfeifer, Howard W.  |    (Astragalus, Cassia, Dalea, Parryella, Psorothamnus, | (Aegilops, Arrhenatherum, Dactylis, Hydrochloa, Lolium, | 
| Rhynchosia, Sophora, Sphinctospermum) | Luziola, Rhynchelytrum, Sorghum, Triticum) | |
| ASCLEPIADACEAE | Clewell, Andre F.  |    Wilson, F. Douglas  |   
| Drapalik, Donald J.  |    (Kummerowia, Lespedeza) | (Sitanion) | 
| Sundell, Eric  |    Duncan, Wilbur H.  |    Wipff, Joseph Karl  |   
| (Cynanchum) | (Galactia) | (Taeniatherum) | 
| Dunn, David  |    Witherspoon, John T.  |   |
| ASTERACEAE | (Lupinus) | (Eragrostis) | 
| Anderson, Dennis M.  |    Fantz, Paul R.  |    |
| (Silphium) | (Centrosema, Clitoria) | |
| Anderson, Loran C.  |    Gillett, John M.  |    PODOSTEMACEAE | 
| (Arnoglossum, Bigelowia, Chrysothamnus) | (Trifolium) | Wooten, Jean W.  |   
| Barbe, G. Douglas  |    Grant, William F.  |    |
| (Cirsium) | (Lotus) | |
| Barkley, Theodore M.  |    Gunn, Charles R.  |    POLEMONIACEAE | 
| (Packera, Senecio) | Hall, David W.  |    Day, Alva G.  |   
| Bayer, Randall J.  |    (Galactia) | (Allophyllum, Collomia, Gilia, Gymnosteris, Ipomopsis, | 
| (Antennaria) | Isely, Duane  |    Langloisia, Linanthus, Loeselia, Microseris, Navarretia) | 
| Beetle, Alan A.  |    Nicolson, Dan H.  |    Timbrook, Steven L.  |   
| (Artemisia) | (Desmodium) | (Langloisia, Loeseliastrum) | 
| Bierner, Mark W.  |    Riefner, Richard E. Jr. | Wherry, Edgar T.  |   
| (Amblyolepis, Balduina, Dugaldia, Gaillardia, | (Crotalaria) | (Phlox) | 
| Helenium, Hymenoxys, Plummera) | Rudd, Velva E.  |    Wilken, Dieter H.  |   
| Brown, Gregory K.  |    Ruff, William R.  |    |
| (Platyschkuhria) | (Strophostyles) | POLYGALACEAE | 
| Canne-Hilliker, Judith M.  |    Schubert, Bernice G.  |    Smith, Robert R.  |   
| (Galinsoga) | (Desmodium) | Wendt, Thomas L.  |   
| Carr, Gerald D.  |    Skinner, Steven G.  |    |
| (Calycadenia, Dubautia, Osmadenia) | (Crotalaria) | POLYGONACEAE | 
| Clark, W. Dennis  |    Small, Ernest  |    Hickman, James C.  |   
| (Hazardia) | (Medicago) | (Polygonum, Rumex) | 
| Clonts, Jerry A.  |    Welsh, Stanley L.  |    Horton, James H.  |   
| (Elephantopus) | (Hedysarum, Oxytropis) | (Polygonella) | 
| Coleman, James  |    Wiersema, John H.  |    Howard, Richard A.  |   
| (Verbesina) | Windler, Donald R.  |    (Coccoloba) | 
| Constance, Lincoln  |    (Crotalaria, Neptuna) | Mitchell, Richard S.  |   
| (Eriophyllum) | Wunderlin, Richard P.  |    (Polygonum, Rumex) | 
| Cronquist, Arthur  |    (Bauhinia) | Reveal, James L.  |   
| Davis, William S.  |    (Aristocapsa, Centrostegia, Chorizanthe, Dedeckera, | |
| (Lacamothrix, Malacothrix) | FAGACEAE | Eriogonum, Gilmania, Hollisteria, Lastarriaea, Mucronea, | 
| DeJong, D.C.D.  |    Duncan, Wilbur H.  |    Mucronea, Nemacaulis, Oxytheca, Pterostegia, | 
| (Astranthium) | Guthrie, Roland L.  |    Stenogonum, Systenotheca) | 
| Douglas, George W.  |    (Quercus) | |
| (Antennaria, Arnica) | Hardin, James W.  |    PONTEDERIACEAE | 
| Ediger, Robert I.  |    Tucker, John M.  |    Horn, Charles N.  |   
| (Senecio) | (Quercus) | Lowden, Richard M.  |   
| Estes, James R.  |    (Pontederia) | |
| (Artemisia) | FLACOURTIACEAE | Wooten, Jean W.  |   
| Fisher, T. Richard  |    Keating, Richard  |    |
| (Heliopsis, Silphium) | PORTULCACEAE | |
| Gardner, Robert  |    FRANKENIACEAE | Hohn, Janet  |   
| (Lipochaeta) | Whalen, Molly A.  |    (Lewisia) | 
| Gottlieb, Leslie D.  |    Lewis, Walter H.  |   |
| (Stephanomeria) | FUMARIACEAE | (Claytonia, Montia) | 
| Harms, Vernon L.  |    Ownbey, Gerald B.  |    McNeill, John  |   
| (Heterotheca, Petasites) | (Corydalis, Dicentra) | Matthews, James F.  |   
| Hartman, Ronald L.  |    (Portulaca) | |
| (Machaeranthera) | GARRYACEAE | Ware, Stewart  |   
| Charles B. Heiser, Jr. | Dahling, Gerald  |    (Talinum) | 
| (Helianthus) | ||
| Holmes, Walter C.  |    GENTIANACEAE | POTAMOGETONACEAE | 
| (Mikania) | Broome, C. Rose  |    Haynes, Robert R.  |   
| Jackson, Raymond C.  |    (Centaurium) | (Potamogeton) | 
| (Iva) | Gillett, John M.  |    |
| Jansen, Robert K.  |    Maas, P.J.M.  |    PRIMULACEAE | 
| (Spilanthes) | (Voyria) | Cooperrider, Tom S.  |   
| Johnson, Miles F.  |    Ornduff, Robert  |    Kelso, Sylvia  |   
| (Ageratum, Eupatorium) | (Nymphoides) | |
| Johnson, R. Roy  |    Perry, James D.  |    PYROLACEAE | 
| (Porophyllum) | (Sabatia) | Haber, Erich  |   
| Jones, Almut G.  |    Post, Douglas M.  |    |
| (Aster, Brachyactis, Machaeranthera, Xylorhiza) | Pringle, James S.  |    RANUNCULACEAE | 
| Jones, Samuel B. Jr. | Yeo, Peter F.  |    Benson, Lyman  |   
| (Vernonieae) | (Ranunculus) | |
| Keil, David J.  |    GESNERIACEAE | Dennis, W. Michael  |   
| (Pectis) | St. John, Harold | (Clematis) | 
| Koch, Rudy G.  |    (Hawaiian taxa) | Duncan, Thomas  |   
| (Bidens) | Skog, Laurence E.  |    (Ranunculus) | 
| Kyhos, Donald W.  |    (Puerto Rican taxa) | Keener, Carl S.  |   
| (Chaenactis) | Ramsey, Gwynn W.  |   |
| Lamboy, Warren F.  |    GOODENIACEAE | (Cimicifuga) | 
| (Aster) | St. John, Harold | Scott, Peter J.  |   
| Lane, Meredith A.  |    (Ranunculus) | |
| (Gutierrezia, Gymnosperma, Xanthocephalum) | GROSSULARIACEAE | |
| Lowrey, Timothy K.  |    Timbrook, Steven L.  |    RHAMNACEAE | 
| (Tetramolopium) | (Ribes) | Johnston, Marshall C.  |   
| William F. Mahler | Schmidt, Clifford L.  |   |
| (Baccharis) | GUNNERACEAE | (Ceanothus) | 
| McGregor, Ronald L.  |    Palkovic, Lawrence A.  |    |
| (Echinacea) | St. John, Harold  |    ROSACEAE | 
| Maguire, Bassett  |    Davis, Hannibal A.  |   |
| (Arnica) | HALORAGACEAE | (Rubus) | 
| Mears, James A.  |    Aiken, Susan G.  |    Davis, Tyreeca S.  |   
| (Parthenium) | (Myriophyllum) | (Rubus) | 
| Moe, L. Maynard  |    Catling, Paul M.  |    Johnston, Barry C.  |   
| (Matricaria) | St. John, Harold  |    (Argentina, Comarum, Pentaphylloides, Potentilla, | 
| Mooring, John  |    Wooten, Jean W.  |    Sibbaldiopsis) | 
| (Eriophyllum) | Ladd, Douglass  |   |
| Morefield, James D.  |    HIPPOCASTANACEAE | (Crataegus) | 
| (Filagininae) | Hardin, James W.  |    Lance, Ron  |   
| Nagata, Kenneth M.  |    (Crataegus) | |
| (Bidens) | HYDRANGEACEAE | Lewis, Walter H.  |   
| Neher, Robert T.  |    Hardin, James W.  |    (Rosa) | 
| (Tagetes) | (Hydrangea) | Mellichamp, T. Lawrence  |   
| Nesom, Guy L.  |    (Aruncus) | |
| Nicolson, Dan H.  |    HYDROCHARITACEAE | Morse, Larry E.  |   
| (Emilia) | Cook, Christopher D.K.  |    (Rubus) | 
| Niles, Wesley E.  |    St. John, Harold  |    Robertson, Kenneth R.  |   
| (Perityle) | Zika, Peter | |
| Northington, David K.  |    HYDROPHYLLACEAE | (Cotoneaster) | 
| (Pyrrhopappus) | Constance, Lincoln  |    |
| Olsen, John S.  |    Howell, John T.  |    RUBIACEAE | 
| (Verbesina) | (Phacelia) | Dempster, Lauramay T.  |   
| Ornduff, Robert  |    Lee, Gregory J.  |    (Galium) | 
| (Lasthenia) | (Phacelia) | Kirkbride, Joseph H. Jr. | 
| Ownbey, Gerald B.  |    Lawson, Cheryl A.  |   |
| (Cirsium) | IRIDACEAE | (Galium) | 
| Parks, James C.  |    Goldblatt, Peter  |    Lewis, Walter H.  |   
| (Melanthera) | Henderson, Douglass M.  |    (Diodia, Hedyotis, Richardia) | 
| Parnell, Dennis R.  |    (Sisyrinchium) | Nesom, Guy L.  |   
| (Corethrogyne) | Hornberger, Kathleen L.  |    Terrell, Edward E.  |   
| Pinkava, Donald J.  |    (Sisyrinchium) | (Hedyotis, Houstonia, Oldenlandia, Oldenlandiopsis) | 
| Pippen, Richard W.  |    Metcalf, Homer | |
| (Cacalia) | RUTACEAE | |
| Powell, A. Michael  |    JUGLANDACEAE | Bailey, Virginia L.  |   
| (Flaveria, Perityle) | Manning, Wayne E.  |    (Ptelea) | 
| Richards, Adrian J.  |    Porter, Duncan M.  |   |
| (Taraxacum) | JUNCACEAE | St. John, Harold  |   
| Richards, Edward L.  |    Ebinger, John E.  |    Scora, Rainer W.  |   
| (Ratibida) | (Luzula) | (Citrus, Fortunella) | 
| Robinson, Harold E.  |    Hämet-Ahti, Leena  |    Stone, Benjamin C.  |   
| Schilling, Edward E.  |    Hermann, Frederick J.  |    |
| Semple, John C.  |    (Juncus) | SALICACEAE | 
| (Aster, Borrichia, Chrysopsis, Heterotheca, | Zika, Peter  |    Argus, George W.  |   
| Pityopsis, Solidago, Xanthisma) | (Salix) | |
| Shultz, Leila M. | KRAMERIACEAE | Dorn, Robert D.  |   
| (Artemisia) | Simpson, Beryl B.  |    (Salix) | 
| Simpson, Beryl B.  |    Eckenwalder, James E.  |   |
| (Acourtia) | LAMIACEAE | (Populus) | 
| Smith, Edwin B.  |    Ball, Peter W.  |    |
| Stebbins, G. Ledyard  |    Bozeman, John R.  |    SAPINDACEAE | 
| (Antennaria, Crepis) | (Dicerandra) | St. John, Harold  |   
| Stoutamire, Warren P.  |    Cantino, Philip D.  |    |
| (Gaillardia) | (Physostegia) | SAPOTACEAE | 
| Strother, John L.  |    Collins, Joseph L.  |    Pennington, T.D.  |   
| Stuessy, Tod F.  |    (Scutellaria) | St. John, Harold  |   
| Tanowitz, Barry D.  |    Irving, Robert S.  |    |
| (Hemizonia) | Lewis, F. Harlan  |    SARRACENIACEAE | 
| Taylor, Constance E.S.  |    (Trichostema) | Bell, C. Ritchie  |   
| (Euthamia, Solidago) | Nelson, John B.  |    Case, Frederick W. II | 
| Tomb, A. Spencer  |    Scora, Rainer W.  |    Schnell, Donald E.  |   
| (Lygodesmia, Stephanomeria) | (Monarda) | |
| Torres, Andrew M.  |    Tucker, Arthur O.  |    SAXIFRAGACEAE | 
| Tyrl, Ronald J.  |    (Coleus, Lavandula, Mentha, Origanum) | Elvander, Patrick E.  |   
| (Achillea) | Mellichamp, T. Lawrence  |   |
| Urbatsch, Lowell E.  |    LAURACEAE | Ornduff, Robert  |   
| (Ericameria, Haplopappus, Tetragonotheca) | Bergh, Robert  |    Packer, John G.  |   
| Van Horn, Gene S.  |    (Persea) | (Chrysosplenium) | 
| (Pentachaeta) | van der Werff, Henk  |    Soltis, Douglas E.  |   
| Watson, Thomas J. Jr. | (Sullivantia) | |
| (Xylorhiza) | LEMNACEAE | Wells, Elizabeth F.  |   
| Weedon, Ronald R.  |    Armstrong, Wayne P.  |    (Heuchera) | 
| (Bidens) | Beal, Ernest O.  |    |
| Wells, James R.  |    SCROPHULARIACEAE | |
| (Polymnia) | LENTIBULARIACEAE | Canne-Hilliker, Judith M.  |   
| Wilken, Dieter H.  |    Godfrey, Robert K.  |    (Agalinis, Aureolaria) | 
| (Hulsea) | (Utricularia) | Carr, Gerald D.  |   
| Schnell, Donald E.  |    (Pedicularis) | |
| BALSAMINACEAE | Taylor, Peter  |    Cooperrider, Tom S.  |   
| Ornduff, Robert  |    Elisens, Wayne J.  |   |
| LILIACEAE | (Holmgrenanthe, Mabrya, Maurandya) | |
| BETULACEAE | Ambrose, John D.  |    Ezell, Wayland L.  |   
| Clausen, Knud E.  |    Browne, Edward T. Jr. | (Mimulus) | 
| Furlow, John J.  |    (Aletris) | Heckard, Lawrence R.  |   
| Mazzeo, Peter M.  |    Duncan, Wilbur H.  |    (Antirrhinum, Castilleja, Chaenorrhinum, Cordylanthus, | 
| (Yucca) | Orthocarpus, Parentucellia) | |
| BIGNONIACEAE | Flory, Walter S. Jr. | Musselman, Lytton | 
| Gentry, Alwyn  |    (Cooperia, Crinum, Furcraea, Galanthus, Habranthus, | Shaw, Richard J.  |   
| Hippeastrum, Leucojum, Lycoris, Narcissus, | (Scrophularia) | |
| BIXACEAE | Pancratium, Zephyranthes) | Straw, Richard M.  |   
| Keating, Richard  |    Freeman, John D.  |    (Chionophila, Keckiella, Nothochelone, Penstemon) | 
| (Trillium) | Thieret, John W.  |   |
| BORAGINACEAE | Hardin, James W.  |    Vickery, Robert K. Jr. | 
| Frohlich, Michael W.  |    (Erythronium) | (Mimulus) | 
| (Heliotropium) | Hickman, James C.  |    Yeo, Peter F.  |   
| Higgins, Larry C.  |    (Veratrum) | (Euphrasia) | 
| (Cryptantha) | Jernstedt, Judith A.  |    |
| Hommersand, Francia  |    (Chlorogalum) | SMILACACEAE | 
| (Amsinckia) | Lenz, Lee W.  |    Duncan, Wilbur H.  |   
| Richardson, Alfred  |    (Triteleia) | (Smilax) | 
| (Tiquilia) | Macfarlane, Roger M.  |    |
| (Fritillaria) | SOLANACEAE | |
| BRASSICACEAE | Meerow, Alan W.  |    Averett, John E.  |   
| Al-Shehbaz, Ihsan  |    Mingrone, Louis V.  |    D'Arcy, William G.  |   
| Bartgis, Rodney L.  |    (Allium) | Eshbaugh, W. Hardy  |   
| (Arabis) | Preece, Sherman J.  |    Heiser, Charles B. Jr. | 
| Kruckeberg, Arthur R.  |    (Zigadenus) | (Capsicum, Solanum) | 
| Mulligan, Gerald A.  |    Sherman, Harry L.  |    Schilling, Edward E.  |   
| Price, Robert A.  |    (Hastingsia, Schoenolirion) | (Solanum) | 
| (Draba, Erysimum) | Skinner, Mark W.  |    Sullivan, Janet R.  |   
| Rodman, James E.  |    (Lilium) | (Physalis) | 
| Rollins, Reed C.  |    Utech, Frederick H.  |    |
| Shaw, Elizabeth A.  |    Wilbur, Robert L.  |    SPARGANIACEAE | 
| Stuckey, Ronald L.  |    (Uvularia) | Beal, Ernest O.  |   
| (Armoracia, Nasturium, Rorippa) | Haynes, Robert R.  |   |
| LIMNANTHACEAE | ||
| BROMELIACEAE | Ornduff, Robert | STERCULIACEAE | 
| Smith, Lyman B.  |    Cristobal, Carmen L.  |   |
| LINACEAE | Goldberg, Aaron  |   |
| BUDDLEJACEAE | Rogers, Claude M.  |    Saunders, Jan  |   
| Norman, Eliane M.  |    ||
| St. John, Harold  |    LOASACEAE | STYRACACEAE | 
| Prigge, Barry A.  |    Reveal, James L.  |   |
| BURSERACEAE | Thompson, Henry J.  |    (Halesia) | 
| Porter, Duncan M.  |    ||
| LOGANIACEAE | SYMPLOCACEAE | |
| CACTACEAE | St. John, Harold  |    Hardin, James W.  |   
| Anderson, Edward F.  |    ||
| Benson, Lyman  |    LYTHRACEAE | TAMARICACEAE | 
| R. Hunt, David | Graham, Shirley A.  |    Baum, Bernard R.  |   
| Taylor, Nigel  |    (Tamarix) | |
| MAGNOLIACEAE | ||
| CALLITRICHACEAE | James W. Hardin | THEACEAE | 
| Beal, Ernest O.  |    Spongberg, Stephen A.  |   |
| MALPIGHIACEAE | ||
| CALYCANTHACEAE | Bruce MacBryde | THYMELAEACEAE | 
| Hardin, James W.  |    (Galphimia) | Nevling, Lorin I. Jr. | 
| Vivaldi, Jose L.  |    (Daphne, Daphnopsis, Dirca, Edgeworthia, Passerina) | |
| CAMPANULACEAE | St. John, Harold  |   |
| Hohn, Janet  |    MALVACEAE | (Wikstroemia) | 
| Shetler, Stanwyn G.  |    Fryxell, Paul A.  |    |
| (Campanula) | Hill, Steven R.  |    TURNERACEAE | 
| Arbo, Maria Mercedes  |   ||
| CANNABACEAE | MELASTOMATACEAE | Ornduff, Robert | 
| Small, Ernest  |    Kral, Robert  |    |
| (Rhexia) | TYPHACEAE | |
| CAPPARACEAE | Morley, Thomas  |    Beal, Ernest O.  |   
| Iltis, Hugh H.  |    (Mouriri) | Smith, S. Galen  |   
| Wurdack, John J.  |    ||
| CAPRIFOLIACEAE | URTICACEAE | |
| Dudley, Theodore R. | MELIACEAE | Bassett, I. John  |   
| James, W. Hardin, | Pennington, T.D.  |    Boufford, David E.  |   
| Salamun, Peter J.  |    Woodland, Dennis W.  |   |
| MONOTROPACEAE | ||
| CARYOPHYLLACEAE | Wallace, Gary D.  |    VALERIANACEAE | 
| Crow, Garrett E.  |    Meyer, Frederick G.  |   |
| (Sagina) | MYRTACEAE | (Valeriana) | 
| Hartman, Ronald L.  |    McVaugh, Rogers  |    Ware, Donna M.E.  |   
| Kruckeberg, Arthur R.  |    St. John, Harold  |    (Valerianella) | 
| (Lychnis, Silene) | ||
| McNeill, John  |    NAJADACEAE | VERBENACEAE | 
| Rabeler, Richard K.  |    Haynes, Robert R.  |    Moldenke, Harold N.  |   
| Sanders, Roger W.  |   ||
| CELASTRACEAE | NYCTAGINACEAE | (Duranta, Lantana) | 
| Prigge, Barry A.  |    Galloway, Leo A.  |    Umber, Ray E.  |   
| Reed, Clyde F.  |    (Glandularia) | |
| CERATOPHYLLACEAE | Spellenberg, Richard W.  |    |
| Les, Donald H.  |    VIOLACEAE | |
| Lowden, Richard M.  |    NYMPHAEACEAE | McKinney, Landon E.  |   
| (Ceratophyllum) | Beal, Ernest O.  |    Russell, Norman H.  |   
| Wooten, Jean W.  |    Wiersema, John H.  |    |
| VISCACEAE | ||
| CHENOPODIACEAE | NYSSACEAE | Kuijt, Job  |   
| Arnold, H. Lamont  |    Eyde, Richard H.  |    Wiens, Delbet  |   
| (Salsola) | ||
| Ball, Peter W.  |    OLEACEAE | VITACEAE | 
| (Arthrocnemum, Salicornia, Sarcocornia) | Little, Elbert L. Jr. | Duncan, Wilbur H.  |   
| Barbe, G. Douglas  |    (Fraxinus) | Moore, Michael O.  |   
| (Salsola) | ||
| Bassett, I. John  |    ONAGRACEAE | XYRIDACEAE | 
| (Atriplex) | Boufford, David E.  |    Kral, Robert  |   
| Blackwell, Will H. Jr. | (Circaea) | |
| McNeill, John  |    Lewis, F. Harlan  |    ZANNICHELLIACEAE | 
| (Atriplex) | (Clarkia, Gayophytum) | Beal, Ernest O.  |   
| Reed, Clyde F.  |    Straley, Gerald B.  |    |
| Sanderson, Stewart C.  |    (Oenothera) | ZINGIBERACEAE | 
| Stutz, Howard  |    Towner, Howard  |    Smith, Rosemary M.  |   
| (Atriplex) | (Calylophus) | |
| Wilson, Hugh D.  |    Wagner, Warren L.  |    ZYGOPHYLLACEAE | 
| (Chenopodium) | (Camissonia, Gaura, Oenothera) | Porter, Duncan M.  |   
| CHRYSOBALANACEAE | ORCHIDACEAE | |
| Prance, Ghillean T.  |    Brown, Paul Martin  |    |
| (North American native Orchids) | ||
| CISTACEAE | Catling, Paul M.  |    |
| Morse, Larry E.  |    (Spiranthes) | |
| (Hudsonia) | Dressler, Robert L.  |    |
| Wilbur, Robert L.  |    (Encyclia, Epidendrum) | |
| Luer, Carlyle A.  |    ||
| CLUSIACEAE | Magrath, Lawrence K.  |    |
| Adams, Preston  |    Meades, Susan  |    |
| Stevens, Peter F.  |    Merhoff, Loyal A. III | |
| (Calophyllum) | (Calypso, Platanthera) | |
| Sheviak, Charles  |    ||
| COMMELINACEAE | Snyder, David  |    |
| Dunn, David  |    ||
| Faden, Robert B.  |    OROBANCHACEAE | |
| Hunt, David R.  |    Collins, Turner  |    |
| MacRoberts, D.T.  |    (Orobanche) | 
Repositories visited by BONAP or from which plant materials and data have been exchanged
| Abel, William | Eastman, Don | Jones, Almut G. | Neuman, Ray | Snyder, David | 
| Aiken, Susan G. | Eastman, Priscilla A. | Jones, Stanley D. | Nordman, Carl | Soreng, Robert J. | 
| Alford, Mac | Eckel, P.M. | Juelg, Tussell | Norquist, Cary | Sorrie, Bruce | 
| Allen, Charles | Ehrenfeld, Joan G. | Kauffman, Randy | Norton,, Dan H. | Spaulding, Dan | 
| Allison, James | Ellis, Donna | Kaul, Robert B. | Nunn, Sarah | Spellenberg, Richard | 
| Allred, Kelly W. | Emens, Rob | Kearns, Kelly | O'Brien, Kate | Sperduto, Dan | 
| Alverson, Ed | Erickson, Terrell | Keener, Carl | O'Kane, Steve L. | Sprinkle, Danny | 
| Anderson, Loran C. | Ernst, John A. | Keith, Eric | O'Kennon, Robert | Starr, Forest | 
| Angelo, Ray | Estes, Dwayne | Ketchersid, Mary | Ode, David J. | Stensvold, Mary Clay | 
| Argus, George W. | Evans, Jeffrey | Kinter, Cecilia L. | Old, Patrick | Steury, Brent | 
| Aulbach-Smith, Cynthia | Fenner, Patti | Kral, Robert | Old, Richard | Stewart, Leslie | 
| Ault, James R. | Fertig, Walter | Kratz, Andrew | Oldham, Michael | Stohlgren, Tom | 
| Austin, Daniel F. | Fisler, Deborah | Kunzer, John M. | Osorio, Federico G. | Stratford, Kay | 
| Aylor, Bill | Ford-Werntz, Donna | Kyde, Kerrie L. | Otsuki, Yuka | Sundberg, Scott | 
| Barger, Wayne | Forestieri, David | Lance, Ron | Packer, Pat | Swearingen, Jil | 
| Barker, William | Fortney, Ron | Langdon, K. | Palumbo, Theresa | Talbot, Steve | 
| Barkley, Theodore M. | Fowler, Larry | Larson, Gary | Parsons, Jenifer | Terrell, Edward E. | 
| Barkworth, Mary E. | Franklin, Ben | Lass, Larry | Peet, Robert | Tessene, Paul | 
| Barnes, Bruce | Frantz, Paul | Lata, Mary | Penskar, Michael | Thieret, John W. | 
| Bartgis, Rodney L. | Freeman, Craig C. | Lawson, Cheryl A. | Perkins, Kent D. | Thomas, L.K. | 
| Baum, Bernard | French, John R. | Lederer, Nancy | Peterson, Angela | Thompson, Sue | 
| Bayer, Randall J. | Frey, Mark | Leonard, Richard | Peterson, Paul | Thurmond, M. | 
| Bennett, Bruce | Frye, Chris | Leonard, Steven W. | Piep, Michael | Till, Linda | 
| Bishop, Andrea | Fryxell, Paul A. | Lesica, Peter | Pinzl, Ann | Tolley, Regan | 
| Bissell, Jim | Furqueron, Chris | Lichvar, Bob | Pittillo, Dan | Towsend, Lynn | 
| Bjork, McIntosh | Gage, Sarah | Lipkin, Rob | Pollack, Glenn | Trowbridge, Frank R. | 
| Black, Merel | Game, John | Lomer, Frank | Popp, Robert | Trumbule, Robert B. | 
| Black, Robin S. | Gamon, John | Lonard, Robert | Pregaldin, Charles | Tucker, Gordon C. | 
| Blaney, Sean | Gardner, Rick | Long, R. | Pringle, James S. | Turner, Billy | 
| Blondeau, Marcel | Gilman, Arthur | Loope, L.L. | Prior, Cathy | Ukropina-Crawford, Zvezdana | 
| Bluhm, Wilbur | Glenn, S. D. | Lucio, Anna | Pyne, Milo | Underwood, Francis | 
| Boone, D. | Goldman, Douglas H. | Ludwig, Chris | Rabeler, Richard K. | Underwood, Malissa | 
| Boufford, David E. | Goodman, Darryl | MacBryde, Bruce | Rader, Linda | Valente, Matthew | 
| Bourgeois, David M. | Gordon, Ken | Magee, Dennis | Rawinski, Tom | Vincent, Michael | 
| Brandenburg, David | Gould, K. R. | Magney, David L. | Ray, Gary | Virag, Gregory | 
| Bregar, John | Grafton, Bill | Malan, Gerald | Read, Robert H. | Vizgirdas, Ray | 
| Brouillet, Luc | Graham, Shirly A. | Mancuso, Michael | Rebman, Jon P. | Vogel, Johannes | 
| Brown, John | Gregory, Linda | Mann, William | Rector, Barreon | Vosen, Harold | 
| Brown, Larry | Guala, Gerald | Manning, Wayne | Rector, Brian G. | Voss, Edward | 
| Brown, Melvin | Haber, Erich | Mansfield, Don | Reed, Clyde | Vrilakas, Sue | 
| Brown, Paul Martin | Haines, Arthur | Martine, Chris | Reed, Monique Dubrule | Wagner, Warren H. | 
| Bryson, Charles | Haldeman, Jan | Mastrogiuseppe, Joy | Reeder, John | Wagner, Warren L. | 
| Burkhart, Eric | Halliday, Glenn | Mayfield, Mark H. | Reid, Christopher S. | Walasewicz, Steve | 
| Burton, Michael G. | Halpern, Alison | McAvoy, William | Rejmßnek, Marcel | Walker, Chuck | 
| Callahan, Frank | Halquist, Barre | McClendon, Tom | Reveal, James L. | Ward, Jerome V. | 
| Campbell, Julian | Halse, Richard | McCook, Lucile M. | Reyher, Deanna | Ware, Donna | 
| Canne-Hilliker, Judith | Hammer, Mike | McCoy, Robert | Reznicek, Anton | Warner, Richard | 
| Caplow, Florence | Hansen, Bruce F. | McCoy, Roger | Rhoads, Ann F. | Weakley, Alan S. | 
| Carlson, Paul | Hansen, Curtis J. | McDaniels, Sidney | Rice, Barry | Weber, William A. | 
| Carr, William R. | Hansen, Jim | McDonald, John | Robinson, Allan J. | Webster, Grady L. | 
| Carter, Louisa | Harmon, Paul J. | McGregor, Ronald L. | Roemer, Brenda | Weishaupt, Clara | 
| Carter, Richard | Harri, John A. | McIlveen, W. D. | Roemer, Hans | Wellard, Blake | 
| Catling, Paul | Harsh, Joseph | McLaughlin, Steven P. | Rohrer, Joseph | Wellford, Alice | 
| Ceska, Adolf | Hartman, Ron | McMillan, Patrick | Roland, Carl | Wells, Elizabeth | 
| Chambers, Kenton | Harvy, Leroy | Meacham, Christopher | Rollins, James | Werier, David | 
| Charlet, David | Haubrich, Gregg | Meades, Susan | Rollins, Reed C. | Westbrooks, Randy | 
| Cholewa, Anita | Haynes, Robert R. | Mears, James | Rondeau, J. Hawkeye | White, Deborah | 
| Chumley, Tim | Hays, Mike | Medley, Max | Rosen, David J. | White, Peter | 
| Clark, Lynn G. | Hegji, Steve | Mehrhoff, Leslie J. | Sanders, Andrew C. | Wieboldt, Thomas | 
| Clemants, Steven | Heidel, Bonnie | Merkel, Richard | Sanders, Julie L. | Wieland, Ronald | 
| Clewell, Andrew F. | Heil, Ken | Meyer, Janice | Saulys, Eleanor | Wiens, John F. | 
| Clifford, Arnold | Heiser, Charles | Meyers-Rice, Barry | Scheibout, Michael | Wiersema, John H. | 
| Cody, William J. | Hellquist, Barre | Michener, Marty | Schimpf, David | Wilbur, Robert | 
| Collins, Turner | Henderson, James | Millman, John | Schmid, James | Wilczynski, Carolyn | 
| Constance, Lincoln | Herbst, Derral | Mitchell, Richard S. | Schmid, Rudolf | Wilder, George | 
| Cook, Mary Beth | Hill, Nick | Mitrow, G. | Schmidt, Greg J. | Wilken, Dieter | 
| Cooperrider, Tom S. | Hill, Steve | Moe, Richard | Schneider, Al | Williams, John R. | 
| Coxe, Robert | Hoagland, Bruce | Mohlenbrock, Robert H. | Schneider, Betty | Williston, Patrick | 
| Cranfill, Ray | Hogan, Tim | Moldenke, Harold | Schneider, Greg | Wilson, Barbara | 
| Cronquist, Arthur | Homoya, Mike | Moore, Jennifer A. | Scholz, Hildemar | Windham, Michael | 
| Crusca, Fred | Horn, Charles N. | Moore, Michael | Schotz, Al | Wofford, B. Eugene | 
| Culpepper, Robyn | Horne, Howard E. | Morefield, James D. | Schreiner, Karen | Woods, Michael | 
| Currie, Haynes | Horton, Diana | Morse, Diana | Schuyler, Alfred E. | Woolf, Thomas E. | 
| Cusick, Allison W. | Hough, Mary | Morse, Dorothy V. | Semple, John C. | Wunderlin, Richard P. | 
| D'Arcy, William G. | Howell, J.T. | Morse, Larry E. | Shell, Paul | Yatskievych, George | 
| Damrel, Dixie | Hrusa, Fred | Morton, Cynthia | Sheviak, Charles | Yatskievych, Kay | 
| Darst, Melanie R. | Hudson, John | Moser, Melissa | Short, Jack | Yenish, Joe | 
| Davis, Cleve | Hunt, David | Mosyakin, Sergei L. | Shory, Rick | York, Alan | 
| Davis, Hannibal | Hutchens, Robert | Mountain, Will | Shultz, Leila M. | Young, Rodney | 
| Day, Alva G. | Hyatt, Philip | Murray, David F. | Simmons, Roderick H. | Zika, Peter | 
| Dempster, Lauramay | Imlay, Marc | Musselman, Litton | Sivinski, Robert | Zimmerman, Julie | 
| Diamond, Alvin | Ingram, Dianne | Naczi, Robert F.C. | Smagula, Amy P. | |
| Dobberpuhl, June | Isely, Duane | Nation, Fred | Smith, Eric L. | |
| Dorn, Robert D. | Jacobs, Don | Neal, Joseph C. | Smith, J.P. | |
| Dozier, Ivan | Jacono, Colette | Neill, Amanda K. | Smith, James W. | |
| Drapalik, Don | Jennings, William F. | Nekola, Jeff | Smith, Latimore | |
| Duffy, Mike | Jensen, Scott | Nelson, Burrell B. | Smith, Matthew | |
| Duncan, Tom | Johnson, Lewis | Nelson, Dean | Smith, S. Galen | |
| Duncan, Wilbur H. | Johnston, Barry | Nelson, John B. | Smith, Welby | |
| Dunn, David | Johnston, June | Nesom, Guy L. | Snow, Neil W. | 
| Ackerfield, Jennifer R. | Fak, Kelly | Leonard, Steve | Rundel, P. | 
| Alverson, Ed | Fay, John | Lesica, Peter | Rush, Tracy | 
| Amoroso, J. | Ferguson, Leslie | Lewallen, Charles | Rutledge, Paul | 
| Anderberg, Anna Lena | Fertig, Walter | Lewis, F. | Rutman, Susan | 
| Anderberg, Arne | Flavon | Lichthardt, Juanita | Savela, M. | 
| Anderson, David G. | Flemming, G. B. | Liston, Aaron | Schassberger, Lisa A. | 
| Anderson, Loran C. | Fletcher, Reggie | Lorain, Chris | Schneider, Al (www.swcoloradowildflowers.com) | 
| Anglin, Guy | Flethcer, Reggie | Lorence, D. H. | Schotz, Al | 
| Atwood, Duane | Gagné, B. | Love, Ken | Schotz, Alfred | 
| Baker, Wilson | Gagné, W. | Lowrey, T. K. | Schuller, Reid | 
| Balakrishnan, N. | Game, John | Lund, Leidulf | Schulz, Gary E. | 
| Baldwin, Bruce G. | Gamon, John | MacLaughlin, Maureen | Schwalbe, Cecil | 
| Barrett, Jim | Giblin, David | Malm, Margaret | Seefeldt, Steve | 
| Beaches & Shawes | Gladwin, H. Tim | Mancuso, Michael | Shaw, Sasha | 
| Bender, Mike | Gould, Joyce | Manhart, J. R. | Sheehan, Mark | 
| Bissett, Nancy | Gowans, Edward | Mantas, Maria | Shelly, Steve | 
| Blake, Jill | Gray, Karen | Markos, Staci | Shirah, Steve | 
| Blanchard, Jon | Gray, William (Cyberflora) | Marriott, H. | Sias, Don | 
| Bleakly, David | Greenlee, Jack | Marttala, Vern | Siddall, Jean | 
| Boothe, B. B. | Hammer, Roger L. | Mathews, Dan | Simard, André | 
| Bourneuf, E. | Hanson, Bruce F. | Mathews, Dave | Sirca, S. | 
| Bradshaw, Jerry | Hardie, Linda M. | Matson, Steve | Sivinski, Robert | 
| Britten, Alan | Hardin, E. E. | Maur, Bryan | Smith, Clifford W. | 
| Brooks, Paula | Harris, Jessie M. | Mayne, Pete | Smith, E. LaVerne | 
| Brown, Bill | Harrod, Richy J. | McAllister, C. | Smith, K. | 
| Brown, Claude | Hartman, Ann H. | McCarthy, Judy | Smith, L. | 
| Brown, Jeff | Hays, Mike | McCartney, Charles | Smith, Matthew | 
| Bruggen, Theodore van | Heart, T. | McDonald, Charlie | Smith, Ruth | 
| Brunsfeld, Robert | Hedenas, Lars | McGinnes, W. | Smith, Welby | 
| Brunsfeld, Steve | Heidel, Bonnie | McLaughlin, William B. | Sole, Mike | 
| Bryan, Dana C. | Heil, Ken | Medeiros, A. C. | Sorrie, Bruce A. | 
| Buckner, Jim | Henderson, Douglas | Medeiros, Art | Spellenberg, Richard | 
| Burkhalter, J. | Herbst, D. R. | Michener, Martin C. | Spence, J. | 
| Burr, D. | Herring, Brenda | Miller, Anthony | Spencer, Marlin | 
| Caicco, Steve | Herring, Don | Moler, Paul | Starr, Forest and Kim (USGS) | 
| Canfield, Joan | Hill, Janice | Moranz, Ray | Steinkamp, Myrna | 
| Caplow, Florence | Hillgard, Debra | Morden, C. W. | Stemmermann, Lani | 
| Caraway, Vickie | Hilsenbeck, R. A. | Morefield, James D. | Stemmermann, R. L. | 
| Carlquist, S. | Hipes, Dan | Moseley, Robert | Stevens, M. L. | 
| Carr, Gerald D. | Hobdy, R. | Mosley, Robert | Stewart, Jon | 
| Carr, M. A. | Holland, J. | Motley, T. J. | Stout, I. Jack | 
| Carr, R. L. | Holloway, Vern | Müller, Jones | Strickler, Dee | 
| Carter, Jack L. | Hopkins, Bill | Munoz, William | Sugii, Nellie | 
| Ceska, Adolf | Howard, Mike | Murphy, Christopher | Suzuki, Kevin | 
| Chafin, Joe Budd/Linda | Huppman, Liz | Myers, L. | Swartz, Linda | 
| Chafin, Linda G. | Hutchins, Charles R. | Naumann, Tamara | Taliapietra-Cherbavaz | 
| Charters, Michael L. | Hyatt, Philip E. | Neely, Betsy | Taylor, Amy | 
| Chauvin, Yvonne | Jackson, Dale | Nelson, Gil | Taylor, Ronald J. | 
| Chimera, C. | Jacobi, J. D. | Nelson, John | Taylor, Walter | 
| Christie, Christopher L. | Jacobson, Anders | Nelson, Julie Kierstead | Tenaglia, Dan | 
| Christman, Steve | Jankovsky-Jones, Mable | Nesmith, Kathy | Tisdale, Edwin | 
| Clemants, Steve | Jenkins, C. | Nipes, Don | Tobe, J. T. | 
| Cole, Nancy | Jennings, Bill | Obata, J. K. | Todd, A. J. | 
| Coleman, Ronald A. | Jensen, John | Ode, David J. | Todd, R. | 
| Coles, Janet | Jog, Suneeti | O'Kane, Steve | Todsen, Tom | 
| Collins, L. T. | John, Harold St. | Old, Richard (www.xidservices.com) | Tonne, Phil | 
| Conant, Sheila | Johnson, Ann F. | Olsen, M. | Toolin, L.J. | 
| Cox, Ann | Johnson, Fred | Oppenheimer, H. | Tuhy, Joel S. | 
| Cox, Robert | Johnson, Terry B. | Oswald, Vernon H. | Urban, Karl | 
| Crins, Bill | Johnston, Barry | Palis, John | Vanderhorst, Jim | 
| Crosby, V. | Jones, Loring M. | Panjabi, Susan Spackman | Vandevender, T.R. | 
| Cuddihy, L. | Joy, John | Patrick, Grace | Vrilakas, Sue | 
| Daehler, C. C. | Joyal, Elaine | Pavek, Diane | Wagner, Warren | 
| Daida, G. | Judd, Walter | Pearsall, G. A. | Walkes, Dick | 
| DeBolt, Ann | Kagan, Jimmy | Peek, James R. | Warshauer, F. R. | 
| DeBruin, Ellen | Karl, D. | Philips, Barb G. | Wasowski, Andy | 
| Degener, O. | Keighery, Greg | Phillips, Wayne | Weldy, Troy | 
| Degener, O. & A. Greenwell | Kemp, Lois | Pierce, John | Wellner, Chuck | 
| Degener, O. & I. | Kendall, Barry | Pierce, Prince | Wemersson, B. | 
| Delaney, A. | Kershaw, Linda | Platt, J. | Wenger, D. | 
| Denno, R. F. | Kerstetter, Tulli | Poole, Jackie | Wenier, David | 
| DeSanto, Jerry | Kindell, Carolyn | Popovich, Steve | Wentworth, Jane | 
| Dietrich, Eleanor | Klockner, W. | Porter, Dallas | Whipple, Jennifer | 
| Droege, Mary | Knight, Gary | Potrick, T.S. | Whistler, Art | 
| DuBois, Kristi | Knight, Paul | Prendusi, Teresa | White, D. | 
| Duft, Joe | Kores, Paul | Randall, Rod | White, M.J.D. | 
| Dumaran, Melissa | Kosterin, O. | Ratzloff, Jim | Wiancko, R. Dennis | 
| Dunbar, S. | Kral, Robert | Rau, Tom | Williams, T. Ann | 
| Duncun, W.H. | Kratz, Andrew | Reed, Daniel W. (www.2bnTheWild.com) | Winger, R. | 
| Dunminre, William | Kuntz, David | Refsdal-Delmatier, Charmaine | Wirt, Steve | 
| Eastman, Don | Kunze, Linda | Reichenbacher, F.W. | Wood, Ken | 
| Eastman, Don and Priscilla | Kyhos, D. W. | Ripple, Jeff | Worthington, Richard | 
| Edinger, G. | Ladyman, Juanita | Ritchie, R. | Wright, Carolyn | 
| Egger, Mark | Lamoureux, C. H. | Rittenhouse, Bruce | Wunderlin, Richard | 
| Eldblom, N. | Lance, Ron | Rodeen | Yanuck-Platt, B. | 
| Elliasson, U. | Larson, Tammy | Roe, Lisa S. | Yatskievych, George | 
| Emery | Layne, J. N. | Rosentreter, Roger | Young, Steve M. | 
| Epple, Anne Orth and Lewis E. | Lee, Linda | Ross, T.L. Jr. | Zika, Peter | 
| Evenden, Angie | Legler, Ben | Roth, Daniela | Zimmerman, Dale | 
| Evenson, Bill | LeGrande, M. | Roth, John E. | 
| Colorado Natural Areas Program | S.M-B | SGW | University of Georgia Herbarium | 
| Idaho Native Plant Society | Saxifraga Foundation | U.S. Fish & Wildlife Service | US Fish & Wildlife Service Photo File | 
| JRC | Seattle FilmWorks | University of Florida: Center for Aquatic and Invasive Plants | William L. Lunk in P.D. Strausbaugh and E.L. Core. 1978. Flora of West Virginia | 
| Oregon Biodiversity Information Center | 
| HOME | BONAP NOTES and NEWS  | 1999 SYNTHESIS  | COLLABORATORS | CONTRIBUTORS | CONTACT BONAP  | REFERENCES | 
Last updated October 11, 2011.