The Marion Ownbey Herbarium is located in room G9 of Heald Hall on the campus of Washington State University. The herbarium is available for use during most week days. Because staff are not always available (and the herbarium may be locked), calling in advance of visits is advisable (telephone: 509-335-3250).
In addition to the general collection of specimens, visitors have access to the special collections of type specimens and cultivated plants. The herbarium has a small library that emphasizes floras and identification manuals.
Visitors should contact the curatorial assistant (email@example.com) for orientation in the herbarium and information of the proper handling of herbarium specimens.