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Oklahoma Biological Survey

Biologist looks across the a pond in the Wichita Mountains

BioDiversity is Our Goal

The Biological Survey is both a state agency and a research department of the University of Oklahoma. The Biological Survey includes the Oklahoma Natural Heritage Inventory, Oklahoma Natural Areas Registry, and the Robert Bebb Herbarium.  Our faculty and staff are committed to providing the best available information on biodiversity in the state of Oklahoma. We do this through our surveys, inventories, and research on the state’s biodiversity. We also collect, curate, and share existing biodiversity data. We are committed to training students and the public in biodiversity science. To achieve our goals we work closely with other allied organizations throughout the state and region.

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We are Hiring!


The Oklahoma Natural Heritage Inventory is seeking a Heritage Zoologist to conduct field inventories of rare species and communities to gather current information about the state’s biodiversity.
Preference will be given to candidates with expertise in aquatic habitats, invertebrates, and/or experience working in Oklahoma.

See Full Job Description

Mussels of Oklahoma


Dr. Caryn Vaughn has developed a new and comprehensive website about all the mussels found in Oklahoma.

Learn About These Amazing Animals

Plant Collections Database

The Bebb Herbarium is a member of the Texas-Oklahoma Regional Consortium of Herbaria (TORCH) which has consolidated their plant collections into a online database.

Flora of Oklahoma

Developing a comprehensive resource for the identification of over 2,500 plant species native to and naturalized in Oklahoma.  A complete set of keys to species, family descriptions, illustrations of morphological characters, a glossary and an index are available as a PDF.

Mailing list

Get biodiversity information in your inbox every month! You can stay up to date with our events and projects by signing up for our monthly newsletter.


of mussel species are considered imperiled




Mussel Taxa in Oklahoma


gallons of water can be filtered by an adult mussel in one day