Humboldt State University Vascular Plant Herbarium (HSC)

The Humboldt State University Vascular Plant Herbarium (HSC) consists of ~104,000 specimens, with a strong emphasis in the flora of northwest California and southwest Oregon. Established in 1960, the Herbarium serves as a botanical resource for students and faculty, as well as, community members and professional botanists. Our collections offer excellent opportunities to learn more about the rich diversity of our native flora, as well as, our exotic and invasive weeds. The Herbarium also participates in loan and exchange programs with other herbaria throughout the country.
Contact: Michael Mesler (
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 28 February 2019
Digital Metadata: EML File
Humboldt State University Vascular Plant Herbarium
Biological Sciences Department
1 Harpst St.
Arcata, CA   95521-8299
(707) 826-4801
Collection Statistics
  • 85,291 specimen records
  • 42,762 (50%) georeferenced
  • 12,183 (14%) with images
  • 72,861 (85%) identified to species
  • 169 families
  • 1,168 genera
  • 4,458 species
  • 6,018 total taxa (including subsp. and var.)
Extra Statistics