Joseph F. Rock Herbarium (Univ. of Hawaii) (HAW)

Founded in 1908, the Joseph F. Rock Herbarium (HAW) serves the official university repository for botanical plant specimens and includes the Lyon Arboretum specimen collection. It is the result of decades of plant exploration by some of the leading researchers in the Pacific basin and collections continue to expand. Today, the herbarium is part of the University Museum Consortium, and comprises approximately 50,000 dried preserved plant specimens.

Mission: The mission of the herbarium is to maintain and expand the collection to make a thorough representation of Hawaiian and Pacific Island flora, with particular emphasis on vascular plants. For more than 100 years, the herbarium has been a focal point for teaching, training, and education on the flora of Hawai'i and the Pacific.

Director: Karolina Heyduk,
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 3 March 2021
Digital Metadata: EML File
Rights Holder: University of Hawaii
Access Rights: not-for-profit use only
Joseph. F. Rock Herbarium
School of Life Sciences
University of Hawaii at Manoa
3190 Maile Way, Room 101
Honolulu, HI   96822
United States
808 956-6489
Collection Statistics
  • 22,083 specimen records
  • 5,135 (23%) georeferenced
  • 8,421 (38%) with images (8,608 total images)
  • 29 misc genetic references
  • 7,646 (35%) identified to species
  • 479 families
  • 987 genera
  • 1,901 species
  • 1,943 total taxa (including subsp. and var.)
Extra Statistics