Consortium of Intermountain Herbaria Collections

Select a collection to see full details.

A. Michael Powell Herbarium

The herbarium occupies one wing of the Warnock Science Building. There are approximately 100,000 specimens housed in 112 cases. The major collections include plants of Trans-Pecos Texas, which forms the northern part of the Chihuahan Desert Region. It is a prominent regional research collection that is availbale to botanists around the work and is also a valuable teachgin facility for both graduate and undergraduate students interested in various botanical disciplines or in wildlife biology. The first significant collections are those made by O.E. Sperry in 1935-1946. The physical herbarium was probably started by L.C. Hinkley but B.H. Warnock was responsible for the largest early collection of plants and major development of the herbarium as a research facility. Another major contributor was M.C Johnston. More recently, the herbarium has grown through the efforts of A.M. Powell, in whose honor the university renamed the herbarium in 2003.
Contact: A. Michael Powell (ampowell<at>
Home Page:


Ada Hayden Herbarium (Iowa State University)

The Ada Hayden Herbarium has the largest collection of Iowa plants and fungi, containing over 600,000 specimens of vascular plants, bryophytes, fungi, and lichens. Functioning primarily as a research facility important for taxonomic studies (occurrence, distribution, and relationships of plants), it is also used for identifying unknown plants. Specimens are loaned to specialists at other institutions around the world to support research. Loans from other institutions allow our researchers access to other herbaria. Recently, herbaria have become a source of materials to use in molecular studies and to support basic research on biodiversity.
Contact: Deborah Lewis, Curator (dlewis<at>


Albion College

The Albion College Herbarium (ALBC) is a teaching collection of about 14,000 specimens, including 10,000 sheets of vascular plants and another 4,000 specimens of bryophytes, algae, lichens, and fungi. Most of its holdings are from the lower peninsula of Michigan. The herbarium of alumnus Charles W. Fallass, '1873 comprises the core of the vascular plant collection. Other contributors include former faculty members William J. Gilbert (1916-1994), Ewell A. Stowell (1922-2009), and 1956 alumnus Maynard C. Bowers (1930-). The Gilbert collections include algae from the S. Pacific. The Bowers collections include mosses from Finland and the western US.
Contact: Matthew Kleinow ()


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

The I.W. Carpenter, Jr. Herbarium contains approximately 29,000 specimens. The three main functions of the ASU Herbarium are for teaching, maintenance of vouchers, and development of a research herbarium with a focus on the flora of the Southern Appalachians.
Contact: Dr. Zack E. Murrell, Curator (murrellze<at>


Archbold Biological Station

The Archbold Biological Station herbarium has over 4200 vascular plant specimens and is located in the laboratory of the Plant Ecology Program in the Richard Archbold Research Center at Archbold Biological Station in Lake Placid, FL. The collection consists predominately of plants collected from central and south Florida, with a strong emphasis on the southern Lake Wales Ridge near and on the property of Archbold Biological Station. Additional collections include bryophytes and lichens. The Archbold Biological Station is also known as the Leonard J. Brass Herbarium, named in honor of worldwide plant collector, palm expert, explorer, conservationist, and botanist, L.J. Brass (1900-1971). Dr. Brass founded this herbarium and collected the majority of its specimens. In February 2010, we also dedicated this collection to Dorothy Mundell, in appreciation of her long-time service to the herbarium. Carl Weekley and Rebecca Yahr also made significant contributions to the ABS herbarium. Eric Menges is currently the curator.
Contact: Menges, Eric (EMenges<at>


Arizona State University Vascular Plant Herbarium

The Arizona State University Vascular Plant Herbarium is the second largest in the Arid Southwest with over 285,000 specimens. Our collection of Cactaceae is one of the best in the world, being particularly rich in cytological vouchers.
Contact: Walter Fertig (wfertig<at>


Arkansas Tech University Herbarium

APCR comprises approx. 22000 specimens, concentrating on the flora of Arkansas, especially the Interior Highlands. Important collectors whose material is housed in the collection include Maxine Clark, Richard Davis, Delzie Demaree, Dwight M. Moore, E.J. Palmer, and Gary Tucker. The emphasis of our work is the Vascular Flora of Arkansas Project.
Contact: George Johnson (gjohnson<at>
Home Page:


Auburn University, John D. Freeman Herbarium

The John D. Freeman Herbarium (AUA) at Auburn University houses the state's largest collection of dried flowering plants, gymnosperms, ferns, bryophytes, fungi, and lichens. Concentrating on specimens collected in Alabama and the southeastern US over the past one hundred years, we are now diversifying our plant holdings from around the world through exchanges and gifts. This valuable botanical resource provides critical information to students and scientists across many disciplines as well as to the general public.
Contact: Leslie R. Goertzen / Curtis J. Hansen (goertzen<at> / hansecj<at>


Austin Peay State University Herbarium

Contact: Dwayne Estes, Curator (estesl<at>


Bandelier National Monument

The flora of Bandelier is now one of the best documented, and most current, vascular plant inventories available for any unit in the National Park Service. The completion of a Revised Checklist of the Vascular Plants of Bandelier National Monument (Jacobs 2012) represents the first significant update to the flora of the monument in the 20 years since completion of the initial Flora of Bandelier project (Jacobs, 1989). Over 50 additional taxa are documented for the monument, bringing the total from around 746 species in 1989 to 800+ in 2012.

The relatively high diversity of vascular plants (800+ taxa documented for 33,000 acre area) reflects the complex topography and wide range of climatic settings available across a nearly 5000-foot elevation range from the Rio Grande at 5300-feet to the summit of Cerro Grande at 10100-feet. However over 15% of the flora is non-native reflecting the legacy of historic landuse and modern disturbances. The monuments herbarium serves the dual purpose of documenting the monuments flora, while also providing a key botanical reference in support of research and monitoring efforts.
Contact: ()


Benedictine College Herbarium

The Benedictine College is a regional herbarium with a focus on species from Eastern KS and western MO, with an emphasis on Atchsion County, KS. The collection has approximately 9000 specimens and houses the collection of H. W. Blocker (circa 1950), a monk and biology professor from the abby associated with the College.
Contact: Dr. Travis Almquist (talmquist<at>
Home Page:


Bitterroot National Forest herbarium

The Bitterroot National Forest herbarium contains specimens from across western Montana and eastern Idaho including Missoula, Mineral, Ravalli, Flathead, Stillwater and Shoshone counties. With specimens dating back to the early 1900’s, the BNF herbarium’s collection not only demonstrates the rich history of the area but the broad habitats encompassed by this forest. The Bitterroot National Forest continues to add to its collections and make collection information readily available for collaborative use.
Contact: Taylor-Davenport, Robin M -FS (robintaylordavenport<at>
Home Page:


Black Hills State University

The Herbarium has ca. 45,000 specimens and is one of the two largest herbaria in South Dakota. BHSC features the world’s largest collection of the distinctive vascular flora of the ecologically unique Black Hills of South Dakota and Wyoming. The collection contains vascular plants, algae, bryophytes and lichens. In addition, the collection consists of approximately 4000 specimens of fungi and slime molds, which include nearly all of the South Dakota state records. The extant vascular plant collection includes a limited number of specimens from around the world; including collections by A. Eastwood, P.O. Schallert, L.S. Rose, J.A. Calder, B.C. Tharp, W.H. Duncan, A.E. Radford, J.M. Gillet, C.G. Pringle, O. Degner, P.A. Munz, E.J. Palmer, K. Biswas, and B. Rosengurtt. Other important collections include those of F.L. Bennett (former BHSC Curator) and M.L. Kravig (Orchidologist). BHSC is also home to one of the largest collections of Miocene age plant fossils from the Great Plains of North America, with at least 10,000 fossils housed from throughout the Great Plains. Type collections of several fossil species from J.R. Thomasson and M.L. Gabel are held in the collection. Grasses (Poaceae), hackberries (Celtis, Ulmaceae), sedges (Cyperaceae) and borages (Boraginaceae) are well represented.
Contact: Grace Kostel (Grace.Kostel<at>


Brigham Young University, S. L. Welsh Herbarium

Vascular Plants
Contact: Robert Johnson / Leigh Johnson (bry.db<at>


Calvin College

The Calvin College Herbarium was founded in 1948 and contains approximately 8,500 specimens, of which over 6,000 are imaged. Most of the holdings are from West Michigan (Kent Co., Ottawa Co.) and Midwestern North America (incl. Nebraska, South Dakota and North Dakota). In addition, Calvin houses vouchers documenting flora at the Calvin College Ecosystem Preserve, Flat Iron Lake and the Grand Rapids area.
Contact: ()


Central Michigan University

The Central Michigan University Herbarium (CMC) strives to integrate research and education, providing centralized botanical resources, research facilities, and educational opportunities to the University and broader scientific community.
Contact: Anna Monfils, Director (monfi1ak<at>


Chicago Botanic Garden

U.S.A., especially midwestern U.S.A. and Chicago region; Asteraceae; fungi; mosses; lichens; horticultural vouchers; China; Russia; Korea.
Contact: Nyree Zerega (nzerega<at>


Clemson University Herbarium

Contact: Dr. Dixie Z. Damrel (ddamrel<at>


Cochise County Herbarium

Contact: Cecile Lumer (cecile<at>


Coconino National Forest Herbarium

Contact: Debra Crisp (dcrisp<at>


Colorado Mesa University, Walter A. Kelly Herbarium

The Walter Almond Kelley herbarium at Colorado Mesa University contains over 5,000 specimens, primarily from western Colorado and eastern Utah. It was founded in 1978.
Contact: Stephen Stern (sstern<at>
Home Page:


Colorado State University - Pueblo

Colorado State University-Pueblo has a small herbarium housed within the Life Science Building. Our collection focuses on the Flora of Southeastern Colorado, including good representation of the Wet Mountains, Pueblo County, and the Spanish Peaks.
Contact: Brian Vanden Heuvel (brian.vandenheuvel [at]


Colorado State University Herbarium

Contact: Jennifer Ackerfield (jrowens<at>


Deaver Herbarium (Northern Arizona University)

Number of Specimens: 105 000 Specialty: Colorado Plateau, especially northern Arizona; northeastern Mojave Desert; northern Arizona National Parks and Monuments; vascular plants of the San Francisco Peaks and Coconino National Forest. Important Collections: M. Baker; R. E. Collom; C. F. Deaver; D. Demaree; R. K. Gierisch; L. N. Goodding; G. Goodwin; H. D. Hammond; R. H. Hevly; M. E. Jones; T. H. Kearney; Max Licher; E. L. Little, Jr.; V. O. Mayes; A. M. Phillips; G. R. Rink; C. G. Schaack; J. J. Thornber; A. F. Whiting Incorporated Herbaria: FSLF (1000 specimens) in 1989. Notes: Name for Arizona State College changed to Northern Arizona University in 1966. ASC fungi transferred to MICH in 1998. ASC is temporarily housing NAVA, until the Navajo Natural Heritage builds a new building. Date Founded: 1930.
Contact: Tina Ayers ( (deaver.herbarium<at>


Delta State University

Contact: Nina Baghai Riding, Director (nbaghai<at>


Desert Botanical Garden Herbarium Collection

Approximately 77000 specimens in collection, with emphasis on plants of the Southwest and northern Mexico, Cactaceae and Agavaceae.
Curator: Wendy C. Hodgson (
Assistant Curator: Andrew Salywon
Contact: Andrew Salywon (asalywon<at>


Devils Tower National Monument

Devils Tower National Monument was established in 1906 and is comprised of 1,347 acres in Crook County, Wyoming. It is located in northeastern Wyoming on the northwest edge of the Black Hills. The 867 foot high Devils Tower was formed by the intrusion of igneous material into softer sedimentary rocks which later eroded to expose the tower. It attracts thousands of climbers each year. Ponderosa pine forests/woodlands cover approximately 60% of the monument. Six types of prairie grasslands occupy roughly 30% of the area in small patches within the more dominant ponderosa pine forest and woodland. The Belle Fourche River flows through the eastern part of Devils Tower NM and forms part of its southern boundary. Deciduous forests/woodlands (including plains cottonwood riparian woodland) occur in about 5% of the monument. Early efforts to document the Monument’s flora included significant contributions by Laura Joyner, wife of an early superintendent, and George W. Giles, working for the Works Project Administration. The first comprehensive plant species inventory was carried out in 1981-1982 (H. Marriott). An extensive list of plant species for Devils Tower NM was reviewed and certified by Marriott in 2004. Ten additional species were found in a survey for plant species of concern in 2008 (B. Heidel) and additional information relevant to the status of several other species has been generated in recent years. The Monument's certified plant list currently is being updated, through fieldwork and review of secondary sources. It is estimated that the known flora contains on the order of 460 species. At this time, there are 800 plant specimens in Devils Tower NM herbarium which is housed at Mount Rushmore National Memorial museum.
Contact: ()


Dickinson State University Herbarium

The Dickinson State University Herbarium contains approximately 1000 specimens with a focus on the vascular plants of southwestern North Dakota. The herbarium is dedicated to serving the educational, scientific, and cultural needs of western North Dakota.
Contact: Craig W. Whippo (craig.whippo<at>
Home Page:


Duke University

Contact: Michael D. Windham / Layne Huiet (mdw26 at / rlh22 at
Home Page:


Eastern Kentucky University Herbarium

The EKU Herbarium (EKY) contains ~77,000 specimens and is the largest collection in Kentucky, and the second largest in the Kentucky-Tennessee region (surpassed only by the University of Tennessee). Most specimens are from central and eastern Kentucky, but also there is a good representation of western Kentucky and of the southeastern United States. There is also a set of woody plant specimens recently collected in Costa Rica. Nearly all specimens are of vascular plants. A number of important sets of specimens are housed at EKY, including sets from Lilley Cornett Woods, Maywoods Environmental and Educational Laboratory, Pine Mountain, Breaks Interstate Park, Brodhead Swamp, the headwater regions of the Green River, collections from the Kentucky State Nature Preserves Commission, collections of Mary Wharton, E.T. Browne, Raymond Athey, and county collections from Madison, Estill, Jackson, and Garrard Counties.
Contact: Brad R. Ruhfel (brad.ruhfel<at>


Eastern Nevada Landscape Coalition

The Eastern Nevada Landscape Coalition's Herbarium specializes in the vascular plants of Nevada with particular emphasis on the Mojave and Great Basin Deserts.
Contact: Greg Gust (ggust<at>


ENMU Natural History Collection Herbarium

Contact: Darren A. Pollock (darren.pollock<at>


Field Museum of Natural History

Phanerogams worldwide with emphasis on tropical and North America, especially rich in collections from Mexico, Guatemala, Costa Rica, Colombia, Venezuela, Ecuador, and Peru; pteridophytes worldwide with emphasis on Guatemala, Costa Rica, Ecuador, and Peru; bryophytes worldwide; mosses of North America, Central America, Andean South America, and Australasia; hepatics of north temperate, South America, and south temperate; all groups of fungi, especially basidiomycetes with emphasis on New World and lichenized fungi of north temperate and Central America; algae worldwide, especially Cyanobacteria; economic botany.
Contact: Christine Niezgoda (cniezgoda<at>


Florida State University, Robert K. Godfrey Herbarium

The collection contains >205,000 specimens that document the distribution and natural variation of plants and algae worldwide, with a special focus on the 2,400 species of plants found in N FL-one of North America's biodiversity hotspots-and the microalgae of FL’s Gulf and Atlantic coasts.
Contact: Dr. Austin R. Mast (amast<at>


Florissant Fossil Beds National Monument

The Florissant Fossil Beds National Monument Herbarium in Colorado contains a nearly complete record of all the flora found within our 6,000 acre boundaries. The Herbarium has been vouchered by William A. Weber, Professor and Curator Emeritus of the Herbarium, University of Colorado Museum of Natural History.
Contact: Conni J. O'Connor (conni_o'connor<at>


Fort Laramie National Historic Site


Fort Lewis College Herbarium

Specialty of the collection is the vascular flora of southwestern Colorado, especially the San Juan Mountains.
Contact: Ross McCauley, Curator (mccauley_r<at>
Home Page:


Friesner Herbarium

The Friesner Herbarium of Butler University, Indianapolis, Indiana, grew out of the personal collections of Dr. Ray C. Friesner, Professor and Chair of the Botany Department, 1920-1952. Many students and other Butler faculty have contributed plants through the years. In the 1930s and 1940s, Butler had an active Masters degree program in Botany with a focus on florisitics and ecology of the state. The collection currently houses over 100,000 specimens. Label data have been digitized for the ca. 50,000 sheets collected in Indiana. More information on the collection is available at
Contact: Rebecca W. Dolan (rdolan<at>


Garrett Herbarium, Natural History Museum of Utah

Contact: Elizabeth Johnson (johnson<at>


George Mason University, Ted R. Bradley Herbarium

Contact: Andrea Weeks, Director (aweeks3<at>


Georgia Southwestern State University Herbarium

Georgia Southwestern State University Herbarium in Americus, Georgia houses the Norris Collection. This collection was compiled by the late Dr. Robert A Norris. His collection is rather cosmopolitan with a concentration in the American Southwest.
Contact: Dr. Stephanie Harvey (sharvey<at>
Home Page:


Gila Center for Natural History (WNMU) Herbarium

Contact: William R. Norris (norrisw<at>


Gila National Forest Herbarium

Contact: ()
Home Page:


Grand Canyon National Park

Museum Collection Herbarium of the Grand Canyon National Park, P.O. Box 129, Grand Canyon, Arizona 86023-0129, U.S.A., (928) 638-7769
Contact: Colleen Hyde (grca_museum_collection<at>


Grand Valley State University

The Grand Valley State University Herbarium (GVSC) is located in the Padnos Hall of Science (we will be moving to the new GVSU science building during the summer of 2015). The herbarium holds about 6000 specimens mostly from west Michigan
Contact: Dr. Tim Evans (evanstim<at>


Grant Herbarium

ISTC contains ca. 47200 accessioned specimens, these mainly from Iowa but with substantial holdings from the American West, especially Arizona, Colorado, New Mexico, and Utah. Many duplicates of the collections of Martin Grant from Iran are also present.
Contact: Steve L. O'Kane, Jr. (steve.okane<at>
Home Page:


Herbario de la Universidad de Sonora

El estado de Sonora, México, tiene una superficie de 184 mil 934 kilómetros cuadrados y ocupa el segundo lugar nacional en extensión. Su flora es muy rica, tanto en especies como en tipos de vegetación, situación inimaginable para quienes no conocen la región. Mas del 70% del territorio sonorense está ocupado por matorral desértico; sin embargo, en las zonas montañosas cuenta con importantes áreas de bosques con especies de coníferas y latifoliadas. Los ecosistemas anteriores, junto con comunidades de halófitas, pastizales y zonas de vegetación acuática y subacuática, conforman una gama de múltiples contrastes en la cubierta vegetal de este Estado en el Noroeste de México. Esta gran diversidad de ecosistemas ocasiona que la flora de Sonora contabilice actualmente más de 3500 especies de plantas que crecen en el medio ambiente natural; debido a ello, a través del Herbario USON, la Universidad de Sonora ha asumido el compromiso de documentar esta gran riqueza florística. El Herbario USON está adscrito al Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora (DICTUS) y, por sus líneas de investigación, se encuentra dentro de la Academia de Conservación y Aprovechamiento de la Diversidad Vegetal (ACADIVE).
Contact: José Jesús Sánchez Escalante (jsanchez<at>


Hillsdale College Herbarium

Contact: Ranessa Cooper (rcooper<at>
Home Page:


Hope College

Hope College Herbarium (HCHM) is located in room 3051 of the Schaap Science Center and holds about 8000 specimens mostly from the West Michigan area with a rich collection of asteraceous plants.
Contact: ()


Howard Payne University Herbarium

The Howard Payne University Herbarium was founded in 1965 and now includes about 60,000 specimens. It is particularly rich in specimens from Central Texas, particularly the Edwards Plateau, and Sonora and Baja Mexico, Mexico and has strong holdings of ferns from Texas. Its notable collectors include J.L. Blassingname, U.T. Waterfall, W.T. McCart, C.M. Rowell, Jr. and J. Stanford.
Contact: Dr. Marilyn Mathis (mmathis<at>


Huntington Botanical Gardens Herbarium

The Huntington Botanical Gardens Herbarium (HNT) was founded in the 1960’s by Myron Kimnach, director of the botanical gardens from 1962 to 1986. It is a depository of mostly exotic plant specimens used in research and teaching. The purpose of these specimens is to serve as voucher documentation for research projects, and as resources for plant identification. With over 10,000 specimens, it is an archive of vascular plants from around the world, with particular emphasis on plants from Mexico, Central America and South America. Important collections include those of F. Boutin, J. P. Folsom, D. R. Hodel, D. de Laubenfels, M. Kimnach and R. Moran. Plant families well-represented include Arecaceae, Cactaceae, Crassulaceae, Euphorbiaceae, and desert plants worldwide. In addition, the herbarium receives and provides loans of plant specimens used in active systematic research.
Contact: Tim Thibault (tthibault<at>

Institute for Botanical Exploration

Founded in 1962, the Institute for Botanical Exploration has 235 000 holdings specializing in Lichens, bryophytes, and vascular plants worldwide, emphasis on Alaska, Mississippi, and adjacent states; tropical America (especially Amazon region).
Contact: Dr. Lucille McCook (bymccook<at>
Home Page:


Intermountain Herbarium (Utah State University)

Records in this database are of the vascular plants in the Intermountain Herbarium. Records for fungi, lichens and bryophytes are now being posted to the taxon-specific networks. The geographic focus of the Intermountain Herbarium is the Intermountain Region of western North America but its holdings come from many different countries. It even has one or more specimens from each of the seven continents. The collection is particularly rich in the Scrophulariaceae (traditional sense) and grasses, including voucher specimens of plants used by by the late D.R. Dewey in his cytogenetic studies of the Triticeae.
Contact: Mary E. Barkworth (mary.barkworth<at>


J. F. Bell Museum of Natural History Herbarium

The Bell Museum of Natural History was established in 1872 by the state legislature. The Herbarium started in 1889 with the purchase of John Sandberg's private collection (6000 specimens). The representation of Minnesota's flora is unparalleled and the assemblage of historic flora of the Upper Midwest is among the best in the U.S. Additionally there are excellent collections of circumboreal and arctic material and historical collections of H. Rusby and R. Squires (1895-1896, Orinoco River delta), J.W. Congdon (1894-1903, California, especially the Yosemite region); South Pacific collections of J. Tilden, A.A. Heller, and J.W. Moore; and more recent Papua New Guinea flora (G. Weiblen and students). Currently the Herbarium contains approximately 940,000 botanical and mycological specimens combined. Only the vascular plant records are being posted to this site at this time.
Contact: Anita Cholewa, Head Curator (chole001<at>

Jemez Mountain Herbarium

Contact: Charles and Yvonne Keller (alfanso<at>
Home Page:


Kathryn Kalmbach Herbarium

The Kathryn Kalmbach Herbarium (KHD), a collection of over 54,000 vascular plant specimens, is a regional herbarium with a research focus on the species diversity of Colorado and the Southern Rocky Mountain region. The collection also contains species from other areas of the Southwest and those species that are in cultivation at Denver Botanic Gardens. Most of the specimens within the collection have been digitized, and their photographs may be found online. Higher resolution images are also available upon request.
Contact: Melissa Islam, Head Curator (melissa.islam<at>


Louisiana State University

Louisiana State University Herbarium Vascular Plant Collection: ca. 159,000 specimens, particularly from Louisiana and the Southeast, but also throughout North America and worldwide through exchange and collections. Families well-represented include Asteraceae, Fabaceae, Cyperaceae and Poaceae worldwide. Significant collections by Fr. G. Arsène, P. Barbour, C. A. Brown, A. Featherman, N. F. Peterson, S.C. Tucker, L. E. Urbatsch, I. Vélez, and E. C. Wurzlow.
Contact: Lowell Urbatsch, Director (leu<at>


Luther College

The LCDI herbarium is a small collection used primarily for teaching and undergraduate research. Is is particularly strong in the flora of northeastern Iowa.
Contact: Beth Lynch (lynchbet<at>
Home Page:


Marshall University

Contact: Emily Gillespie, Curator (gillespiee<at>
Home Page:


Mesa Verde National Park

Contact: ()
Home Page:


Michigan State University

The MSU Herbarium was founded in 1863 with the donation of a large collection of plants from Michigan and the eastern U.S. Today, we remain focused on plant and fungal diversity from Michigan, but the collection is also rich in plants from Mexico and southeast Asia, and lichens from the Caribbean and the subantarctic region. With over half a million specimens, the MSU Herbarium is among the 50 largest herbaria in the United States, whereas the lichen collection, with 120,000 accessioned collections, is among the 10 largest in North America and, because of its geographical scope, of international importance.
Contact: L. Alan Prather (alan<at>


Middle Tennessee State University

Contact: Ashley B. Morris, Curator (amorris.mtsu<at>
Home Page:


Minot State University

The herbarium of Minot State University contains specimens from the North Dakota counties that are least well represented in the older herbaria of the state. As specimens are collected, they are incorporated into an online checklist of North Dakota plants. The checklist also draws on information from specimens in other state herbaria.
Contact: Alexey Shipunov, Curator (alexey.shipunov<at>


Mississippi Museum of Natural Science Herbarium

The Mississippi Museum of Natural Science Herbarium currently consists of over ~70,000 mounted plant specimens, with approximately 2,000 unmounted specimens in various stages of preparation. Collections from ~29 states are found in the herbarium; however, the majority of the collection (93%) is composed of specimens from Mississippi.
Contact: Heather Sullivan (heather.sullivan<at>


Mississippi State University

Contact: Lisa Wallace, Director (lisawallace<at>


Missouri Botanical Garden

Plants are essential to sustaining the stability and quality of human life on this planet. At the Missouri Botanical Garden, we have dedicated ourselves to helping conserve biological diversity while there is still something left to protect. Our research provides scientific information essential to decision makers, from conservation and land use to social and environmental policy. We have taken the lead in making information widely accessible via the Internet, maintaining the world's largest botanical database and the premier botanical website, TROPICOS. Garden scientists conduct the most productive and geographically widespread botanical research program in the world. A tiny sample of its herbarium records are presented here; providing more will require funding.
Contact: Jim Solomon (jim.solomon<at>


Montana State University - Billings

MSUB Herbarium contains vascular plant specimens, some of which date back to late 1800s and early 1900s. The Herbarium serves as a tool for basic research in plant systematics, ecology, phytogeography, and evolution. The collections are actively used in teaching and research as a resource to provide population localities for studies of a diverse nature, ranging from biological control to rare plants. MSUB was established in 1976 when the collections from the herbaria of Eastern Montana Normal School, Eastern Montana College, Rocky Mountain College, and USDA Forest Service were consolidated. It has grown steadily to about 16,500 specimens. The collections include plants of Montana, (emphasis on eastern Montana and Beartooth Plateau,), India, Venezuela, Roberson County, Texas, Brooklyn Botanical Gardens Herbarium, W.K. Kellogg Biological Field Station and vascular plants of Wisconsin, Ohio, Utah, and many other places.
Contact: Tasneen Khaleel (tkhaleel<at>
Home Page:


Morton Arboretum

Northern hemisphere and cultivated woody plants; Chicago region; lichens of Illinois and Missouri (20 000 specimens).
Contact: Andrew Hipp (ahipp<at>


Museum of Northern Arizona

Walter B. McDougall Herbarium
Museum of Northern Arizona
3101 North Fort Valley Road
Flagstaff, Arizona 86001

Index Herbariorum
Contact: Kirstin Olmon Phillips (kolmon<at>


Navajo Nation Herbarium

Contact: Andrea Hazelton (ahazelton<at>
Home Page:


Nevada Operations Office, Department of Energy

6. This small herbarium consists primarily of specimens from south-central Nevada collected on federally controlled lands focusing on the Nevada National Security Site. There are just under 8,000 specimens collected primarily from 1960-1990. Dr. Janice Beatley was the originator of the collection and several Botanists have contributed records over the past 50 years. The U.S. Department of Energy provides support for maintaining the collection to assist with environmental work at the Nevada National Security Site.
Contact: Dr. W. Kent Ostler (ostlerwk<at>
Home Page:


New Mexico State University Herbarium

Contact: Lillis Urban or C. Donovan Bailey (lillisurban<at> or dbailey<at>


New York Botanical Garden

Contact: Thiers, Barbara (bthiers<at>


NMSU Center for Natural History Collections Range Science

Contact: Amy Ganguli (ganguli<at>


North Carolina Zoological Park

Contact: Allen, Nell (nell.allen<at>


Northern Illinois University Herbarium

he herbarium at NIU is an internationally recognized systematic collection, initiated in the 1960s and enlarged significantly during the 1970s to the present. Holdings presently total about 19,000 specimens of vascular plants plus an additional 8000 bryophytes. A very large portion of the bryophytes (about 6000 specimens) is on permanent loan to MO (Missouri Botanic Garden).
Special collections include a definitive collection of the genus Dahlia, which contains holotypes and isotypes plus a thoroughly documented array of hybrids between authenticated wild species. A second important collection is of Arbutus that also includes type material. The troublesome genus Agrimonia is more completely documented at DEK than at any other herbarium in the world. DEK presently maintains exchange relationships with more than 26 domestic and 6 foreign herbaria. As a consequence, coverage, while emphasizing the flora of Illinois, is worldwide.
Contact: Paul Sørensen (psorensen<at>


Pacific Union College Hebarium

Specialty: Vascular plants of coastal regions from San Francisco Bay to southern Oregon; Napa County, California; Klamath Mountains; Arizona; Nevada.
Date Founded: 1967.
Contact: Aimee Wyrick, Director and Curator (awyrick<at>
Home Page:


R.M. Myers Herbarium

The R.M. Myers Herbarium contains more than 75,000 specimens, of which most are from western Illinois or southeastern Iowa. We hold a major collection of moss specimens from western Illinois, as well as a set of Opuntia fragilis specimens that document most areas where it grows in the midwest.
Contact: Eric Ribbens (e-ribbens<at>
Home Page:


Rocky Mountain Biological Laboratory

Vascular Plants curated within the Rocky Mountain Biological Laboratory herbarium
Contact: C.F. Rick Williams, Curator (willcha2<at>


Rocky Mountain Herbarium

Founded in 1893 by Aven Nelson, the Rocky Mountain Herbarium (RM) contains the largest collection of Rocky Mountain plants and fungi in existence with additional representation of the floras of other parts of the Northern Hemisphere. It ranks 17th in the nation with 825,000 specimens [with approximately 25,000 new specimens added each year] and is the largest facility of its kind between St. Louis, Missouri, and Berkeley, California
Contact: Ronald L. Hartman (rhartman<at>


Sagehen Herbarium

The Sagehen Herbarium is comprised of two related collections: Flora of the Sagehen Basin (approx. 1600 specimens) and Flora of the Chickering American River Reserve (approx. 200 specimens). Both are designed to be synoptic teaching collections for their respective regions. Sagehen Basin is approximately 8000 acres, and encompasses a diverse cross section of the Sierra Nevada from the Pacific Crest (el. 8000 ft) to the eastern slope (el. 6400 ft). Habitats include yellow pine, mixed conifer, and red fir forests, as well as brushfields, scattered mountain meadows, and fens. Major collectors include E. Davidson, W. Savage, B. Trowbridge, L. Loeblich, J. Ammirati, R. Schmid, M. Fleshner, and J. Brooks.  The Chickering American River Reserve encompasses the headwaters of the North Fork American River, on the west slope of the Sierra Nevada. It includes habitats such as black oak woodlands, montane and subalpine coniferous forests, aspen groves, willow thickets, mixed riparian woodland, wet and dry subalpine meadows, montane chaparral, alpine lake margins, and fell fields. Major collectors are R. Palmer, B. Corbin, S. Chickering, E. Krimmel, and F. Felix. Flora of the Chickering American River is a new collection as of Summer 2013, with the goal of establishing voucher specimens to document this reserve's plant list. Both the Sagehen Creek and Chickering American River collections are actively being added to at a rate of 50-300 per field season.
Contact: Erica Krimmel (ekrimmel<at>


San Diego State University

The San Diego State University Herbarium (SDSU) is a depository of over 20,000 pressed and mounted plant specimens used in research and teaching. The purpose of these specimens is: 1) to serve as voucher documentation for research projects; 2) to serve as resources for plant identification; and 3) to serve as exemplars in plant courses. In addition, the herbarium both receives and provides loans of plant specimens used in active systematic research. The herbarium collection specializes in land plant specimens from San Diego County, California, and Baja California, with some collections from Australia, Chile, and the south Pacific.
Contact: Michael Simpson, Curator (msimpson<at>


San Juan College Herbarium

Specialty: Vascular flora of Four Corners area, San Juan Drainage; Fabaceae; Polygonaceae; Cactaceae; Orchidaceae; Cyperaceae.
Contact: Kenneth Heil, Director (kendelheil<at>


Shrub Science Laboratory, Rocky Mountain Research Station

Shrubs are the dominant form of plant life on vast areas of North America, as well as on other continents. Shrub dominance is a consequence of major climatic and geologic patterns. Approximately 548,000 square miles (142 million hectares) of the western United States are characterized by shrubland dominance. Sizable additional areas classified as forests, woodlands, grasslands, or riparian corridors include an important shrub component. Despite the large size of these shrub-dominated ecosystems, they are often poorly understood and frequently abused as a natural resource. Research is needed to better understand and manage these plant communities and their associated biota.

The Provo Shrub Sciences Lab is located in Provo, Utah near the Brigham Young University campus. As part of the Grassland, Shrubland and Desert Ecosystems Program in the Rocky Mountain Research Station, scientists conduct original research and collaborate with researchers and managers from private and public universities and state, federal, and foreign agencies on aspects of shrub and shrubland biology, ecology, and management. Research focus areas are inter-related and address challenges to shrubland conservation and management under the over-arching realities of a changing world.
Contact: Stewart Sanderson (ssanderson<at>


Snow College Herbarium

Snow College is the only Utah Community College to be ranked among the top ten percent of US community colleges. Its herbarium, which has about 6,000 specimens, was founded in 1940. Most are from Sanpete County, Utah, and adjacent areas.
Contact: Luis Gordillo (luis.gordillo<at>


South Dakota State University Herbarium

The SDSU Herbarium dates back to 1891 and the foundation of South Dakota College. The herbarium was designated the C. A. Taylor Herbarium in 1994 to honor Charles Arthur Taylor, Jr. who dedicated 40 years of his life to its maintenance and growth. The collection has grown to >60,000 accessions thanks to floristic studies focused on such areas as the Black Hills National Forest, the Fort Pierre and Grand River National Grasslands, and wetlands of the Prairie Pothole Region. The collection is in the early stages of specimen digitization, with about 4500 databased (none imaged) thus far.
Contact: Dr. Gary Larson (gary.larson<at>
Home Page:


Southern Utah University

The geographic focus of Southern Utah University's Herbarium (SUU) is the southwestern Great Basin region. As a biologically diverse area that lies at the junction of four ecosystems (Central and Mohave Basins as well as Wasatch and Colorado Plateaus), the approximately 8000 current specimens mirror an array of ecological and economical changes that have occurred in the southern Basin. In addition to historical documentation, specimens housed in the SUU Herbarium serve as a teaching tool for our students. The SUU Herbarium is also the official repository for Parashant National Monument (National Park Service).
Contact: Matt Ogburn (mattogburn<at>
Home Page:


Southwestern Research Station

The Southwestern Research Station aspires to add to the existing diversity and strengths of the American Museum of Natural History by providing scientists and educators from the Museum and other institutions across the country and around the world the opportunity to participate in research, workshops, and classes in one of the most biologically rich environments in the United States. The Station seeks to face the challenges of the future by promoting knowledge and understanding of our ever changing world and by evolving to meet the current needs of individuals and groups that strive to conserve the world’s biodiversity – all through the benefits of an outdoor laboratory that enhances research and education.
Contact: Marilyn Loveless (MLOVELESS<at>


St. Andrews University

St. Andrews University in Laurinburg, North Carolina, has approximately 9,000 vascular plant specimens. Contact Curator Tracy S. Feldman for access to the Herbarium.
Contact: Tracy S. Feldman (feldmants<at>


Stover-Ebinger Herbarium (Eastern Illinois University)

The Stover-Ebinger Herbarium has about 80,000 specimens. It contains a good representation of the flora of the midwestern United States, but most of its specimens were collected in Illinois. Students and faculty conducting ecological studies and floristic inventories use the herbarium to help identify the plants they see and collect. Students in Plant Taxonomy, Dendrology, and Wetland Plants classes use it to become familiar with species and for identification of specimens. In the Wetland Plants, General Botany, Ethnobotany, and Plant Morphology classes, herbarium specimens are used to to make morphological comparisons among relevant plant taxa. The herbarium was started in 1899. Originally named the Stover Herbarium for Dr. Ernest L. Stover, professor of botany from 1923-1960, the Botany Dept. faculty voted in 1995 to "expand" the name to honor John E. Ebinger on the occasion of his retirement. Dr. Ebinger collected about half the specimens in the collection and served as curator from 1963-1995. For information about vascular plants and bryophytes, contact Dr. Gordon C. Tucker (; for fungi and lichens, contact Dr. Andrew S. Methven (
Contact: Gordon C. Tucker, Curator (gctucker<at>


Swaner Preserve and EcoCenter

The Swaner Preserve and EcoCenter consists of a LEED Platinum nature education center and a 1200 acre nature preserve that is protected in perpetuity. The collection currently consists of just over 500 specimen primarily collected on the preserve and in Summit County, UT.
Contact: Nell Larson (nell.larson<at>


Tall Timbers Research Station

Contact: Thomas Ostertag, Collections Manager (tom<at>


Tarleton State University Herbarium

The herbarium was founded in 1921 but most of the collections are recent. Our collection primarily represents the West Cross Timbers of Texas with the earliest work being a 1920s flora for Erath County, where the herbarium is located. Since that time, there have been many additions to the flora of the West Cross Timbers of Texas. We also have many voucher specimens from several ecological investigations in the region and from a floristic project at Padre Island National Seashore in southeast Texas.
Contact: Allan Nelson (nelson<at>


Theodore M. Sperry Herbarium

The collections contain approximately 65,000 specimens, which document the distribution and natural variation of vascular plants and bryophytes in Kansas, adjacent states, and North America. Many specimens from southeast Kansas are not duplicated elsewhere. The collections also include important holdings from abroad (Dem. Rep. Congo; Peru; Myrtaceae of Madagascar and New Caledonia; Poaceae worldwide).
Contact: Neil Snow (nsnow<at>


Trinidad State Junior College

Contact: Sherman, Susan (Susan.Sherman<at>


U.C. Davis Herbarium

University of California, Davis herbarium collections are worldwide, with emphasis on California, North America, and neotropics (especially Ecuador and Baja California); Quercus, Fagaceae, and Arctostaphylos, Ericaceae of New World; Euphorbiaceae; Poaceae; Clarkia (Onagraceae); Lycianthes and Lycopersicon (Solanaceae); Stephanomeria and tarweed genera (Asteraceae); Navarretia (Polemoniaceae); Allium (Alliaceae); Trifolium (Fabaceae);Prunus (Rosaceae); Central Valley of California vernal pool species; weedy and poisonous species of California and Mediterranean-climate regions; range plants of California; alpine flora of western North America. Size of collection: 320,000 specimens, 50% from California.
Contact: Ellen Dean, Director; Tom Starbuck, Data (tjstarbuck<at>


University of Arizona Herbarium

Contact: ARIZ Herbarium (herbarium<at>


University of California, Riverside Plant Herbarium

Contact: Andrew Sanders (Andrew.Sanders<at>


University of Memphis Herbarium

Contact: Darrell Brandon (d.brandon<at>
Home Page:


University of Michigan Herbarium

Specialty: Worldwide, especially temperate North America and the Great Lakes region. Specific strengths include marine algae of eastern North America, West Indies, Alaska, and Pacific Islands; bryophytes of tropical America; Agaricaceae and Hymenogastraceae of western North America; vascular plants of Mexico, Iran, Himalayas, southwestern Pacific Region, and southeastern Asia; Cyperaceae, Malpighiaceae, and Myrtaceae of the New World.
Date Founded: 1837.
Contact: Richard Rabeler, Collections Manager (rabeler<at>


University of Mississippi, Thomas M. Pullen Herbarium

The Pullen Herbarium (MISS) collection consists of over 62,000 vascular plant specimens, as well as non vascular plants, slime molds and woods. With funding from the National Science Foundation , the collection is now housed in new cabinets on a compactor system and the specimen data has been entered into a searchable database.
Contact: Lucile McCook, Curator (bymccook<at>


University of Nebraska at Kearney Herbarium

The University of Nebraska at Kearney Herbarium (NEBK) contains ca. 35,000 specimens of vascular plants and approximately 4000 bryophytes and lichens. The collection is mostly regional and representative of the mixed-grass prairies of the Central Great Plains. The organization of NEBK can largely be attributed to the late Ole A. Kolstad who was curator from 1965-1992. Some significant collections are those by H.A. Hapeman (late 1800’s-early 1900’s), W.E. Bruner (1930’s), O.A. Kolstad (1960’s-1970’s), and G.E. Larson (1970’s to date). Grasses (Poaceae), sedges (Cyperaceae), and rushes (Juncaceae) are well represented.
Contact: Steve Rothenberger, Curator (rothenberges<at>
Home Page:


University of Nevada Herbarium

Contact: Arnold Tiehm, Curator (unrherb<at>


University of New Mexico Herbarium

Contact: Timothy K. Lowrey (tlowrey<at>


University of North Carolina Herbarium

The University of North Carolina Herbarium (NCU) is a Department of the North Carolina Botanical Garden of the University of North Carolina at Chapel Hill. The vascular plant collection is world-wide in scope, and focuses on the native flora of the Southeastern United States. Approximately 450,000 of our ca. 600,000 specimens will be imaged & databased for THE KEY TO THE CABINETS: BUILDING & SUSTAINING A RESEARCH DATABASE FOR A GLOBAL BIODIVERSITY HOTSPOT. NCU also curates plant fossils (esp. Devonian), fungi (esp. collections of W.C. Coker & J.N. Couch), lichens, bryophytes, and algae (esp. red marine algae of temperate zones). NCU is open to the public & welcomes researchers.
Contact: Carol Ann McCormick (mccormick<at>


University of North Carolina, Asheville

We have a collection of about 5000 specimens that are primarily from the southern Appalachians. These include about 2500 specimens from Polk County and vicinity that were collected by O. M. Freeman in the 1950's, and about 1500 specimens from the Bent Creek Herbarium of the U.S. Forest Service.
Contact: David Clarke (dclarke<at>
Home Page:


University of South Carolina, A. C. Moore Herbarium

The A. C. Moore Herbarium is an important part of the Department of Biological Sciences at the University of South Carolina (Columbia Campus). Founded in 1907 by Dr. Andrew Charles Moore, the original collection of dried plant specimens is now part of an ever growing collection. Total holdings are just over 100,000 specimens, making the A. C. Moore Herbarium the largest in the state of South Carolina. Researchers and visitors will find a diverse collection of vascular and nonvascular plant material primarily from the Southeastern United States and more specifically from South Carolina. Now over 100 years old, the A. C. Moore Herbarium continues to be an indispensable resource for botanical knowledge.
Contact: Dr. John B. Nelson (nelson<at>


University of Southern Mississippi Herbarium

Founded in 1964, the University of Southern Mississippi Herbarium specializes in Vascular plants of the southeastern U.S., aquatic and wetland plants as well as myxomycetes of Mississippi.
Contact: Mac Alford (mac.alford<at>


University of Wisconsin-Milwaukee

The University of Wisconsin-Milwaukee Herbarium (UWM) is one of the largest in the state, with a total of approximately 62,000 accessioned specimens with a further 4,000 specimens unaccessioned at UWM or housed at the UWM Field Station. The majority of the dried plant specimens are from Wisconsin, especially the southeastern portion of the state. Also included is an extensive collection of the flora found at the University of Wisconsin-Milwaukee Field Station, a six square mile area of wetlands and mixed deciduous forests. UWM also has collections from other areas of the country and the world. These include the American Southwest (especially the Sonoran Desert), Australia, Northern Europe, and Alaska. The collection is growing, especially in the Ranunculaceae (buttercup family) and related families (Ranunculales).
Contact: Sara Hoot, Director (hoot<at>


US Forest Service Southwestern Region

Contact: Elizabeth Makings (elizabeth.makings<at>



USU-Eastern, formerly known as the College of Eastern Utah, became a branch campus of Utah State University in 2010. Its herbarium's emphasis is on the flora of Carbon and Emery Counties, Utah. USU-Eastern offers associate degrees in arts, science, and applied science and facilitates transfers to the state’s four year institutions.
Contact: Mike King (mike.king<at>
Home Page:


Utah State University Uintah Basin

The herbarium of the Uintah Basin campus of Utah State University (USUUB) contains about 7500 specimens, all of them vascular plants and most of them collected by Dr. Sherel Goodrich, a botanist with the Ashley District of the US Forest Service who retired in December, 2011. Thanks to the efforts of Dr. Lorin Squires and support by Dr. Goodrich, the Forest Service agreed to transfer the specimens collected by Goodrich to the Uintah Basin campus where they will be available to help those in the area become familiar with and interested in studying the region’s distinctive flora.
Contact: Shana Geffeney (shana.geffeney<at>
Home Page:


Utah Valley University Herbarium

The Utah Valley University Herbarium (UVSC, was established in 1987 as a research and teaching facility. The initial herbarium collection consisted of botanical specimens collected by Dr. James G. Harris, Professor of Biology, whose research focuses on a wide range of habitats including the deserts of the San Rafael Swell, high elevation mountain peaks (i.e. Mt. Timpanogos, Mt. Nebo, and the Deep Creek Range), as well as arctic regions of North America and Greenland. Currently the herbarium houses over 17,000 accessioned herbarium sheets, with an average of 1,500 specimens being added to the collection each year. The current curator, Dr. Jason A. Alexander, is a specialist in desert floras, specifically the Mojave Desert and the Great Basin, and the genus Astragalus (milkvetches) in the family Fabaceae.
Contact: Jason Alexander (ALEXANJA<at>


Virginia State University Herbarium

A small collection of plants focused on southside Virginia.
Contact: Sarah Melissa Witiak (switiak<at>


Washburn University

WASH represents a unique collection of Great Plains flora, mostly collected in pre-development period from 1861-1920. Specialty: Great Plains, especially Kansas. Date Founded: 1878.
Contact: Jason Emry (jason.emry<at>
Home Page:


Western Carolina University Herbarium

Contact: Dr. Katherine Mathews, Director and Curator (kmathews<at>
Home Page:


Western State Colorado University

Western slope of Colorado Rocky Mountains, including bryophytes and lichens.
Contact: Robin Bingham, Curator (rbingham<at>
Home Page:


William Jewell College Herbarium

The herbarium was founded in 1877. It contains approximately 15,000 specimens and specializes in the plants of Missouri.
Contact: Jennifer Schafer (schaferj<at>
Home Page:


Wisconsin State Herbarium at UW-Madison

The Wisconsin State Herbarium (WIS), formerly known as the University of Wisconsin-Madison Herbarium, was founded in 1849, and is a scientific collection of pressed, dried, labeled, and classified plants and fungi. It also preserves notes, illustrations, and other material about plants, and it maintains its own valuable Herbarium Library. The collection of more than 1.2 million specimens is of regional, national, and international importance. Approximately one-fourth of its vascular plant specimens are from Wisconsin, all of which have been databased and are searchable online. In addition, most of the world's floras are well represented, and the holdings from certain areas such as the Upper Midwest, eastern North America, western Mexico, and the Arctic (primarily lichens) are widely recognized as resources of global significance. The herbarium occupies two floors of the east wing of historic Birge Hall at the top of Bascom Hill on the UW-Madison campus. In addition to its specimen holdings, visitors to WIS have access to high-quality microscopes, an extensive library of books, reprints and maps, computer workstations, and internet connections for personal computers. WIS serves as the state of Wisconsin's official repository of plant specimen vouchers, and is actively engaged in educating students and sharing our passion for plants with the public. The faculty, staff, and students associated with the herbarium are engaged in a variety of local, regional, national, and international efforts to document, showcase, and protect plant diversity.
Contact: Kenneth M. Cameron (kmcameron<at>


Arizona State University Fruit and Seed Collection

Contact: Patricia Fall (fall<at>
Home Page:


Arizona State University Pollen Collection

Contact: Patricia Fall (fall<at>
Home Page:


General Observations

This is a collection of general image supported observations submitted by general SEINet users.
Contact: SEINet Administrator (seinetadmin<at>
Home Page:


Madrean Archipelago Biodiversity Assessment Observations

Contact: Thomas R. Van Devender (yecora4<at>

Sonoran Atlas

Sonoran Desert Plants: An Ecological Atlas

Turner R.M., J. E. Bowers, and T. L. Burgess. 2005. Sonoran Desert Plants: An Ecological Atlas. University of Arizona Press: Tucson, AZ
Contact: Nick Deyo (nick<at>
Home Page: