Colorado State University, Charles Maurer Herbarium (CS)

The Charles Maurer Herbarium Collection is the third largest collection of vascular plants (> 104,000 specimens) and is the oldest herbarium (began in 1883) in the southern Rocky Mountain region. Important collections include those by J. Ackerfield, J. Cassidy, J. H. Cowen, C.S. Crandall, and H.D. Harrington. The herbarium has an excellent representation of the Colorado flora as well as the flora of the southern Rocky Mountain region. These herbarium specimens were the primary bases for the Colorado floras published by Rydberg (1906), Harrington (1954), and Ackerfield (2015).
Contacts: Jennifer Ackerfield,
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 12 January 2021
IPT / DwC-A Source:
Digital Metadata: EML File
Colorado State University
Biology Department
Fort Collins, CO   
United States
Collection Statistics
  • 98,508 specimen records
  • 62,249 (63%) georeferenced
  • 68,280 (69%) with images (73,426 total images)
  • 95,912 (97%) identified to species
  • 215 families
  • 1,602 genera
  • 7,074 species
  • 7,986 total taxa (including subsp. and var.)
Extra Statistics