CCH1 serves as a gateway to information from California vascular plant specimens that are housed in herbaria, worldwide. Currently, the database includes over 2.2 million specimen records from 36 institutions.

Please do not cite data retrieved from this site. This is an archived version of CCH from September 2018 and will no longer be updated.

Scientific Name

e.g.: Platanaceae; Dudl; Dudleya bloch; blochmaniae;
Dudleya blochmaniae insul; Quercus X alvordiana.

Geographic Locality

e.g.: Round Meadow; Forester

Elevation (metric): Lower Upper


(1 or more; default is all counties) 

Geographic Region

(Regions defined by bounding-box)

Source (1 or more; default is all sources)

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Enable yellow flags to display possible range discrepancies
Include records from the California Floristic Province portion of Baja California
CNPS Inventory (return only names in California Native Plant Society Inventory)
Noxious weeds / invasives (return only records of CAL-IPC or CDFA covered weeds)
Non-natives (return only records of naturalized species)
Specimens with coordinates
Specimens without coordinates
Vegetation Type Map specimens
Name list (return only one record for each name)

Collector (last name only; e.g.: Muir; Moref)

Collection Number (numerical part only)

Collection Date (Note: Before and After is by Year only)

Month Day Year Before After Exact Date Reset
     Read use terms      2000 records is the default maximum. For larger data requests contact Jason Alexander


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Search here using specimen number


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About this page
  Use this page to search for specimen records. Any combination of fields may be searched. The links with the fields provide examples. If you select "Search using latitude and longitude" you will go to a separate geographic search page. If you select "Name list", a list of names that satisfy the search criteria will be returned; one record for each name will be included. If you want to search using common names, go to the Jepson Interchange. The possibility of making comments or viewing comments is provided on each return page.  
Comments/questions to Jason Alexander
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