Colorado State University Herbarium (CSU-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).
Contact: Mark P. Simmons (
Collection Type: Preserved Specimens
Management: Live Data managed directly within data portal
Global Unique Identifier: 6cbf93b2-0069-4836-82ba-77798bda7989
Live Data Download: Login for access
Digital Metadata: EML File
Rights Holder: Colorado State University
Collection Statistics
  • 98,819 occurrence
  • 62,249 (63%) georeferenced
  • 198 families
  • 1,510 genera
  • 6,669 species
Extra Statistics