Collections Access

The United States National Herbarium (US) maintains a world-class research collection of all major groups of plants (bryophytes, ferns, gymnosperms and angiosperms) as well as algae (esp. marine algae and diatoms) and lichens. Our vast collections of over 5 million specimens are accessible, both online and in person, to anyone with a research question related to our collections. Our Type Herbarium is one of the largest in the world. Visiting researchers include botanists, artists, historians, and students.

Specimen Catalogs

Botany Specimen Catalog

U.S. National Herbarium Type Register

Image Use Policy

Herbarium Collections

Collections Overview

Botany Collections Management Policies

Museum Collections Policies

Loan Policies

Information for Visitors

Contact the Collections Manager

Special Collections

Wood Collection