Northern Kentucky University, John W. Thieret Herbarium (KNK)

The John W. Thieret Herbarium (KNK) at Northern Kentucky University, in Highland Heights, Kentucky, specializes in flora of the southeastern and midwestern US. Most of our approximately 30,000 collections are from Kentucky, Louisiana, Mississippi, and Ohio. In addition, we have many specimens from the Canadian Arctic, which was one of Dr. Theiret's regions of interest. Due to the combined efforts of Dr. Thieret and Dr. Naczi, we also have especially good collections of sedges (Cyperaceae) and grasses (Poaceae).

Contacts: Maggie Whitson,
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 18 February 2020
Digital Metadata: EML File
John W. Thieret Herbarium
Department of Biological Sciences
Northern Kentucky University
Highland Heights, KY   41099
Collection Statistics
  • 27,014 specimen records
  • 1,123 (4%) georeferenced
  • 22,913 (85%) with images (22,959 total images)
  • 25,735 (95%) identified to species
  • 243 families
  • 1,536 genera
  • 4,636 species
  • 4,910 total taxa (including subsp. and var.)
Extra Statistics