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.
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) |
| 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) |
Field botanists
| Abel, William | Dunn, David | Johnston, June | Nesom, Guy L. | Smith, Welby |
| Aiken, Susan G. | Eastman, Don | Jones, Almut G. | Neuman, Ray | Snow, Neil W. |
| Alford, Mac | Eastman, Priscilla A. | Jones, Stanley D. | Nordman, Carl | Snyder, David |
| Allen, Charles | Eckel, P.M. | Juelg, Tussell | Norquist, Cary | Soreng, Robert J. |
| Allison, James | Ehrenfeld, Joan G. | Kauffman, Randy | Norton,, Dan H. | Sorrie, Bruce |
| Allred, Kelly W. | Ellis, Donna | Kaul, Robert B. | Nunn, Sarah | Spaulding, Dan |
| Alverson, Ed | Emens, Rob | Kearns, Kelly | O'Brien, Kate | Spellenberg, Richard |
| Anderson, Loran C. | Erickson, Terrell | Keener, Carl | O'Kane, Steve L. | Sperduto, Dan |
| Angelo, Ray | Ernst, John A. | Keith, Eric | O'Kennon, Robert | Sprinkle, Danny |
| Argus, George W. | Estes, Dwayne | Ketchersid, Mary | Ode, David J. | Starr, Forest |
| Aulbach-Smith, Cynthia | Evans, Jeffrey | Kinter, Cecilia L. | Old, Patrick | Stensvold, Mary Clay |
| Ault, James R. | Fenner, Patti | Kral, Robert | Old, Richard | Steury, Brent |
| Austin, Daniel F. | Fertig, Walter | Kratz, Andrew | Oldham, Michael | Stewart, Leslie |
| Aylor, Bill | Fisler, Deborah | Kunzer, John M. | Osorio, Federico G. | Stohlgren, Tom |
| Barger, Wayne | Ford-Werntz, Donna | Kyde, Kerrie L. | Otsuki, Yuka | Stratford, Kay |
| Barker, William | Forestieri, David | Lance, Ron | Packer, Pat | Sundberg, Scott |
| Barkley, Theodore M. | Fortney, Ron | Langdon, K. | Palumbo, Theresa | Swearingen, Jil |
| Barkworth, Mary E. | Fowler, Larry | Larson, Gary | Parks, Justin L. | Talbot, Steve |
| Barnes, Bruce | Franklin, Ben | Lass, Larry | Parsons, Jenifer | Terrell, Edward E. |
| Bartgis, Rodney L. | Frantz, Paul | Lata, Mary | Peck, James H. | Tessene, Paul |
| Baum, Bernard | Freeman, Craig C. | Lawson, Cheryl A. | Peet, Robert | Thieret, John W. |
| Bayer, Randall J. | French, John R. | Lederer, Nancy | Penskar, Michael | Thomas, L.K. |
| Bennett, Bruce | Frey, Mark | Leonard, Richard | Perkins, Kent D. | Thompson, Sue |
| Bishop, Andrea | Frye, Chris | Leonard, Steven W. | Peterson, Angela | Thurmond, M. |
| Bissell, Jim | Fryxell, Paul A. | Lesica, Peter | Peterson, Paul | Till, Linda |
| Bjork, McIntosh | Furqueron, Chris | Lichvar, Bob | Piep, Michael | Tolley, Regan |
| Black, Merel | Gage, Sarah | Lipkin, Rob | Pinzl, Ann | Townsend, John |
| Black, Robin S. | Game, John | Lomer, Frank | Pittillo, Dan | Towsend, Lynn |
| Blaney, Sean | Gamon, John | Lonard, Robert | Pollack, Glenn | Trowbridge, Frank R. |
| Blondeau, Marcel | Gardner, Rick | Long, R. | Popp, Robert | Trumbule, Robert B. |
| Bluhm, Wilbur | Gilman, Arthur | Loope, L.L. | Pregaldin, Charles | Tucker, Gordon C. |
| Boone, D. | Glenn, S. D. | Lucio, Anna | Pringle, James S. | Turner, Billy |
| Boufford, David E. | Goldman, Douglas H. | Ludwig, Chris | Prior, Cathy | Ukropina-Crawford, Zvezdana |
| Bourgeois, David M. | Goodman, Barbara A. | MacBryde, Bruce | Pyne, Milo | Underwood, Francis |
| Brackney, Elisabeth | Goodman, Darryl | Magee, Dennis | Rabeler, Richard K. | Underwood, Malissa |
| Brandenburg, David | Gordon, Ken | Magney, David L. | Rader, Linda | Valente, Matthew |
| Bregar, John | Gould, K. R. | Malan, Gerald | Rawinski, Tom | Vincent, Michael |
| Brouillet, Luc | Grafton, Bill | Mancuso, Michael | Ray, Gary | Virag, Gregory |
| Brown, John | Graham, Shirly A. | Mann, William | Read, Robert H. | Vizgirdas, Ray |
| Brown, Larry | Gregory, Linda | Manning, Wayne | Rebman, Jon P. | Vogel, Johannes |
| Brown, Melvin | Guala, Gerald | Mansfield, Don | Rector, Barreon | Vosen, Harold |
| Brown, Paul Martin | Haber, Erich | Martine, Chris | Rector, Brian G. | Voss, Edward |
| Bryson, Charles | Haines, Arthur | Mastrogiuseppe, Joy | Reed, Clyde | Vrilakas, Sue |
| Burkhart, Eric | Haldeman, Jan | Mayfield, Mark H. | Reed, Monique Dubrule | Wagner, Warren H. |
| Burton, Michael G. | Halliday, Glenn | McAvoy, William | Reeder, John | Wagner, Warren L. |
| Callahan, Frank | Halpern, Alison | McClendon, Tom | Reid, Christopher S. | Walasewicz, Steve |
| Campbell, Julian | Halquist, Barre | McCook, Lucile M. | Rejmßnek, Marcel | Walker, Chuck |
| Canne-Hilliker, Judith | Halse, Richard | McCoy, Robert | Reveal, James L. | Ward, Jerome V. |
| Caplow, Florence | Hammer, Mike | McCoy, Roger | Reyher, Deanna | Ware, Donna |
| Carlson, Paul | Hansen, Bruce F. | McDaniels, Sidney | Reznicek, Anton | Warner, Richard |
| Carr, William R. | Hansen, Curtis J. | McDonald, John | Rhoads, Ann F. | Weakley, Alan S. |
| Carter, Louisa | Hansen, Jim | McGregor, Ronald L. | Rice, Barry | Weber, William A. |
| Carter, Richard | Harmon, Paul J. | McIlveen, W. D. | Robinson, Allan J. | Webster, Grady L. |
| Catling, Paul | Harri, John A. | McLaughlin, Steven P. | Roemer, Brenda | Weishaupt, Clara |
| Ceska, Adolf | Harsh, Joseph | McMillan, Patrick | Roemer, Hans | Wellard, Blake |
| Chambers, Kenton | Hartman, Ron | Meacham, Christopher | Rohrer, Joseph | Wellford, Alice |
| Chance, Alva | Harvy, Leroy | Meades, Susan | Roland, Carl | Wells, Elizabeth |
| Charlet, David | Haubrich, Gregg | Mears, James | Rollins, James | Werier, David |
| Cholewa, Anita | Haynes, Robert R. | Medley, Max | Rollins, Reed C. | Westbrooks, Randy |
| Chumley, Tim | Hays, Mike | Mehrhoff, Leslie J. | Rondeau, J. Hawkeye | White, Deborah |
| Clark, Lynn G. | Hegji, Steve | Merkel, Richard | Rosen, David J. | White, Peter |
| Clemants, Steven | Heidel, Bonnie | Meyer, Janice | Sanders, Andrew C. | Wieboldt, Thomas |
| Clewell, Andrew F. | Heil, Ken | Meyers-Rice, Barry | Sanders, Julie L. | Wieland, Ronald |
| Clifford, Arnold | Heiser, Charles | Michener, Marty | Saulys, Eleanor | Wiens, John F. |
| Cody, William J. | Hellquist, Barre | Mild, Christina | Scheibout, Michael | Wiersema, John H. |
| Collins, Turner | Henderson, James | Millman, John | Schimpf, David | Wilbur, Robert |
| Constance, Lincoln | Herbst, Derral | Mitchell, Richard S. | Schmid, James | Wilczynski, Carolyn |
| Cook, Mary Beth | Hill, Nick | Mitrow, G. | Schmid, Rudolf | Wilder, George |
| Cooperrider, Tom S. | Hill, Steve | Moe, Richard | Schmidt, Greg J. | Wilken, Dieter |
| Coxe, Robert | Hoagland, Bruce | Mohlenbrock, Robert H. | Schneider, Al | Williams, John R. |
| Cranfill, Ray | Hogan, Tim | Moldenke, Harold | Schneider, Betty | Williston, Patrick |
| Cronquist, Arthur | Homoya, Mike | Moore, Jennifer A. | Schneider, Greg | Wilson, Barbara |
| Crusca, Fred | Horn, Charles N. | Moore, Michael | Scholz, Hildemar | Wilson, H. |
| Culpepper, Robyn | Horne, Howard E. | Morefield, James D. | Schotz, Al | Windham, Michael |
| Currie, Haynes | Horton, Diana | Morse, Diana | Schreiner, Karen | Wofford, B. Eugene |
| Cusick, Allison W. | Hough, Mary | Morse, Dorothy V. | Schuyler, Alfred E. | Woods, Michael |
| D'Arcy, William G. | Howell, J.T. | Morse, Larry E. | Semple, John C. | Woolf, Thomas E. |
| Damrel, Dixie | Hrusa, Fred | Morton, Cynthia | Shell, Paul | Wunderlin, Richard P. |
| Darst, Melanie R. | Hudson, John | Moser, Melissa | Sheviak, Charles | Yatskievych, George |
| Davis, Cleve | Hunt, David | Mosyakin, Sergei L. | Short, Jack | Yatskievych, Kay |
| Davis, Hannibal | Hutchens, Robert | Mountain, Will | Shory, Rick | Yenish, Joe |
| Day, Alva G. | Hyatt, Philip | Murray, David F. | Shultz, Leila M. | York, Alan |
| Dempster, Lauramay | Imlay, Marc | Musselman, Litton | Simmons, Roderick H. | Young, Rodney |
| Diamond, Alvin | Ingram, Dianne | Naczi, Robert F.C. | Sivinski, Robert | Zika, Peter |
| Dobberpuhl, June | Isely, Duane | Nation, Fred | Smagula, Amy P. | Zimmerman, Julie |
| Dorn, Robert D. | Jacobs, Don | Neal, Joseph C. | Smith, Eric L. | |
| Dozier, Ivan | Jacono, Colette | Neill, Amanda K. | Smith, J.P. | |
| Drapalik, Don | Jennings, William F. | Nekola, Jeff | Smith, James W. | |
| Duffy, Mike | Jensen, Scott | Nelson, Burrell B. | Smith, Latimore | |
| Duncan, Tom | Johnson, Lewis | Nelson, Dean | Smith, Matthew | |
| Duncan, Wilbur H. | Johnston, Barry | Nelson, John B. | Smith, S. Galen |
| Ackerfield, Jennifer R. | Evenden, Angie | Lesica, Peter | Rutledge, Paul |
| Alverson, Ed | Evenson, Bill | Lewallen, Charles | Rutman, Susan |
| Amoroso, J. | Fak, Kelly | Lewis, F. | Savela, M. |
| Anderberg, Anna Lena | Fay, John | Lichthardt, Juanita | Schassberger, Lisa A. |
| Anderberg, Arne | Ferguson, Leslie | Liston, Aaron | Schneider, Al (www.swcoloradowildflowers.com) |
| Anderson, David G. | Fertig, Walter | Lorain, Chris | Schotz, Al |
| Anderson, Loran C. | Flavon | Lorence, D. H. | Schotz, Alfred |
| Anglin, Guy | Flemming, G. B. | Love, Ken | Schuller, Reid |
| Arthur, Aaron | Fletcher, Reggie | Lowrey, T. K. | Schulz, Gary E. |
| Atwood, Duane | Flethcer, Reggie | Lund, Leidulf | Schwalbe, Cecil |
| Baker, Wilson | Gagné, B. | MacLaughlin, Maureen | Seefeldt, Steve |
| Balakrishnan, N. | Gagné, W. | Malm, Margaret | Shaw, Sasha |
| Baldwin, Bruce G. | Game, John | Mancuso, Michael | Sheehan, Mark |
| Barrett, Jim | Gamon, John | Manhart, J. R. | Shelly, Steve |
| Beaches & Shawes | Giblin, David | Mantas, Maria | Shirah, Steve |
| Bender, Mike | Gladwin, H. Tim | Markos, Staci | Sias, Don |
| Bissett, Nancy | Gould, Joyce | Marriott, H. | Siddall, Jean |
| Blake, Jill | Gowans, Edward | Marttala, Vern | Simard, André |
| Blanchard, Jon | Gray, Karen | Mathews, Dan | Sirca, S. |
| Bleakly, David | Gray, William (Cyberflora) | Mathews, Dave | Sivinski, Robert |
| Boothe, B. B. | Greenlee, Jack | Matson, Steve | Smith, Clifford W. |
| Bourneuf, E. | Hammer, Roger L. | Maur, Bryan | Smith, E. LaVerne |
| Bradshaw, Jerry | Hanson, Bruce F. | Mayne, Pete | Smith, K. |
| Britten, Alan | Hardie, Linda M. | McAllister, C. | Smith, L. |
| Brooks, Paula | Hardin, E. E. | McCarthy, Judy | Smith, Matthew |
| Brown, Bill | Harris, Jessie M. | McCartney, Charles | Smith, Ruth |
| Brown, Claude | Harrod, Richy J. | McDonald, Charlie | Smith, Welby |
| Brown, Jeff | Hartman, Ann H. | McGinnes, W. | Sole, Mike |
| Bruggen, Theodore van | Hays, Mike | McLaughlin, William B. | Sorrie, Bruce A. |
| Brunsfeld, Robert | Heart, T. | Medeiros, A. C. | Spellenberg, Richard |
| Brunsfeld, Steve | Hedenas, Lars | Medeiros, Art | Spence, J. |
| Brackney, Elisabeth | Heidel, Bonnie | Michener, Martin C. | Spencer, Marlin |
| Breckling, Barry | Heil, Ken | Miller, Anthony | Starr, Forest and Kim (USGS) |
| Bryan, Dana C. | Henderson, Douglas | Moler, Paul | Steinkamp, Myrna |
| Buckner, Jim | Herbst, D. R. | Moranz, Ray | Stemmermann, Lani |
| Burkhalter, J. | Herring, Brenda | Morden, C. W. | Stemmermann, R. L. |
| Burr, D. | Herring, Don | Morefield, James D. | Stevens, M. L. |
| Caicco, Steve | Hill, Janice | Morse, Keir | Stewart, Jon |
| Canfield, Joan | Hillgard, Debra | Moseley, Robert | Stout, I. Jack |
| Caplow, Florence | Hilsenbeck, R. A. | Mosley, Robert | Strickler, Dee |
| Caraway, Vickie | Hipes, Dan | Motley, T. J. | Sugii, Nellie |
| Carlquist, S. | Hobdy, R. | Müller, Jones | Suzuki, Kevin |
| Carr, Gerald D. | Holland, J. | Munoz, William | Swartz, Linda |
| Carr, M. A. | Holloway, Vern | Murphy, Christopher | Taliapietra-Cherbavaz |
| Carr, R. L. | Hopkins, Bill | Myers, L. | Taylor, Amy |
| Carter, Jack L. | Howard, Mike | Naumann, Tamara | Taylor, Ronald J. |
| Ceska, Adolf | Huppman, Liz | Neely, Betsy | Taylor, Walter |
| Chafin, Joe Budd/Linda | Hutchins, Charles R. | Nelson, Gil | Tenaglia, Dan |
| Chafin, Linda G. | Hyatt, Philip E. | Nelson, John | Tisdale, Edwin |
| Chance, Alva | Jackson, Dale | Nelson, Julie Kierstead | Tobe, J. T. |
| Charters, Michael L. | Jacobi, J. D. | Nesmith, Kathy | Todd, A. J. |
| Chauvin, Yvonne | Jacobson, Anders | Nipes, Don | Todd, R. |
| Chimera, C. | Jankovsky-Jones, Mable | Obata, J. K. | Todsen, Tom |
| Christie, Christopher L. | Jenkins, C. | Obermayer, Walter | Tonne, Phil |
| Christman, Steve | Jennings, Bill | Ode, David J. | Toolin, L.J. |
| Clemants, Steve | Jensen, John | O'Kane, Steve | Trnkoczy, Amadej |
| Cole, Nancy | Jog, Suneeti | Old, Richard (www.xidservices.com) | Tuhy, Joel S. |
| Coleman, Ronald A. | John, Harold St. | Olsen, M. | Urban, Karl |
| Coles, Janet | Johnson, Ann F. | Oppenheimer, H. | Vanderhorst, Jim |
| Collins, L. T. | Johnson, Fred | Oswald, Vernon H. | Vandevender, T.R. |
| Conant, Sheila | Johnson, Terry B. | Palis, John | Vrilakas, Sue |
| Cox, Ann | Johnston, Barry | Panjabi, Susan Spackman | Wagner, Warren L. |
| Cox, Robert | Jones, Loring M. | Patrick, Grace | Walkes, Dick |
| Crins, Bill | Joy, John | Pavek, Diane | Warshauer, F. R. |
| Crosby, V. | Joyal, Elaine | Pearsall, G. A. | Wasowski, Andy |
| Cuddihy, L. | Judd, Walter | Peek, James R. | Weldy, Troy |
| Daehler, C. C. | Kagan, Jimmy | Philips, Barb G. | Wellner, Chuck |
| Daida, G. | Karl, D. | Phillips, Wayne | Wemersson, B. |
| DeBolt, Ann | Keighery, Greg | Pierce, John | Wenger, D. |
| DeBruin, Ellen | Kemp, Lois | Pierce, Prince | Wenier, David |
| Degener, O. | Kendall, Barry | Platt, J. | Wentworth, Jane |
| Degener, O. & A. Greenwell | Kershaw, Linda | Poole, Jackie | Whipple, Jennifer |
| Degener, O. & I. | Kerstetter, Tulli | Popovich, Steve | Whistler, Art |
| Delaney, A. | Kindell, Carolyn | Porter, Dallas | White, D. |
| Denno, R. F. | Klockner, W. | Potrick, T.S. | White, M.J.D. |
| DeSanto, Jerry | Knight, Gary | Prendusi, Teresa | Wiancko, R. Dennis |
| Dietrich, Eleanor | Knight, Paul | Randall, Rod | Williams, T. Ann |
| Droege, Mary | Kores, Paul | Ratzloff, Jim | Winger, R. |
| DuBois, Kristi | Kosterin, O. | Rau, Tom | Wirt, Steve |
| Duft, Joe | Kral, Robert | Reed, Daniel W. (www.2bnTheWild.com) | Wood, Ken |
| Dumaran, Melissa | Kratz, Andrew | Refsdal-Delmatier, Charmaine | Worthington, Richard |
| Dunbar, S. | Kuntz, David | Reichenbacher, F.W. | Wright, Carolyn |
| Duncun, W.H. | Kunze, Linda | Ripple, Jeff | Wunderlin, Richard |
| Dunminre, William | Kyhos, D. W. | Ritchie, R. | Yanuck-Platt, B. |
| Eastman, Don | Ladyman, Juanita | Rittenhouse, Bruce | Yatskievych, George |
| Eastman, Don and Priscilla | Lamoureux, C. H. | Rodeen | Young, Steve M. |
| Edinger, G. | Lance, Ron | Roe, Lisa S. | Zika, Peter |
| Egger, Mark | Larson, Tammy | Rosentreter, Roger | Zimmerman, Dale |
| Eldblom, N. | Layne, J. N. | Ross, T.L. Jr. | |
| Elliasson, U. | Lee, Linda | Roth, Daniela | |
| Emery | Legler, Ben | Roth, John E. | |
| Epple, Anne Orth and Lewis E. | LeGrande, M. | Rundel, P. | |
| Erika, Delak | Leonard, Steve | Rush, Tracy |
| 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 |
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Last updated January 10, 2012.