The Pacific Ocean: The Pacific Basin Network presents herbarium specimen data from the Pacific Ocean, and
covers Hawaii and territories and countries around the entire Pacific basin
The Pacific Northwest: The Consortium of Pacific Northwest Herbaria now covers a region including Washington,
Oregon, Idaho, and Montana, and extending north into Alaska (which is also covered by Arctos) and British Columbia. It
combines information for over 3.6 million specimen records and numerous online electronic resources from the region's
The Intermountain Region: The Intermountain Region is basically the region between the Sierra Nevada range and
the Rocky Mountains range, extending north through the Snake River Plains. At it heart is the Great Basin, the largest
area with only interior drainage in North America. The Intermountain Consortium includes herbaria from southern Idaho,
Nevada and Utah. Some herbaria in the region also pool their information with herbaria in the Southwestern
Environmental Information Network, others with herbaria in the Pacific Northwest.
The Southwestern Region: The Southwest Biodiversity Consortium covers the southwestern United States and
adjacent northwestern Mexico. This area includes portions of the Colorado, Sonoran, Mohave, Great Basin, and
Chihuahuan deserts, as well as the Rocky Mountains, Great Plains, Sierra Madre, Mediterranean California, and the
forested mountains that rise out of the deserts. This herbarium network (the Southwestern Environmental Information
Network or SEINet) includes herbaria from California, Arizona, New Mexico, Colorado, the Intermountain Region, and the
Universidad de Sonora. It also provides access to regional specimens from the New York Botanical Garden and the
Rocky Mountain Herbarium of the University of Wyoming.
Southeast: Georgia, Alabama, Tennessee, Kentucky, South Carolina, North Carolina, Virginia, West Virginia, Florida.
Northeast: The Consortium of Northeastern Herbaria aggregates data from almost 20 institutions, and covers New
England and surrounding areas, including the states of Maine, New Hampshire, Vermont, Massachusetts, New York,
Connecticut, Rhode Island, Pennsylvania, New Jersey, and Delaware. It also includes Canada from eastern Ontario east to
the Atlantic Ocean.
California: The Consortium of California web site accesses specimen information aggregated from over 20 California
herbaria, including its largest herbaria. It also draws information from the herbaria of Harvard University and the New York
Botanical Garden, both of which contain many historical collections from California.
Regions: US herbaria are grouped into nine broad regions. Some
of these regions are associated with data portals that aggregate
data from contributing herbaria for that region and make the data
available online. While our ultimate goal is a national database that
meets our ideals for data presentation, regional portals are an
important intermediate step towards that goal and are likely to
always be useful for individuals seeking regional data.
The U.S. Virtual Herbarium Project:
Bringing all herbaria into a digital network and
demonstrating the value of shared information.
South: Louisiana, Texas, Oklahoma, Arkansas, Mississippi
Midwest: Kansas, Nebraska, South Dakota, North Dakota, Minnesota, Iowa, Missouri, Illinois, Wisconsin, Indiana,
Michigan, and Ohio.