The University of Alabama Herbarium (UNA), the herbarium of the Department of Biological Sciences, houses about 68,603 specimens of vascular plants, about 6,000 specimens of mosses, about 650 specimens of liverworts, 2,373 specimens of marine algae, about 800 specimens of lichens, and about 1,300 specimens of fungi. These include The Mohr Herbarium (formerly ALU) ca. 4500 specimens on permanent loan from the Alabama Museum of Natural History.

The herbarium is in the process of digitizing its specimen data. The data can be searched on the Global Biodiversity Information Facility (GBIF). We participated in the Checklist of Vascular Plants of Alabama project. We reviewed the identifications in the collection to determine which species have been documented to occur in the state and in each county. Our Alabama collections can now be searched in the Alabama Plant Atlas.