The Catalina Island Conservancy Herbarium houses about 2,000 vascular plant specimens. All specimens were collected on Santa Catalina Island. 73% of the specimens were collected in the 1970's and 1990's by Mark L. Hoefs.
CATA - Catalina Island Conservancy Herbarium Vascular Plants. Occurrence dataset (ID: ) https://cch2.org/portal/content/dwca/CATA-Vascular_DwC-A.zip accessed via the Symbiota Local Portal Portal, https://dev010.symbiota.org/Portal, 2026-06-22).