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California Botanic Garden Herbarium

Specimen Records: 891,667
Media Records: 512,688
iDigBio Last Ingested Date: 2026-04-23

The combined Herbarium of California Botanic Garden and Pomona College (RSA-POM) is a museum-quality collection of vascular plant specimens. With current holdings totaling over 1,250,000 specimens, the Herbarium is the third largest in California. The Herbarium is recognized throughout the world for its strength in documenting the diversity, distribution, variation, and ecology of more than 6500 species of flowering plants, conifers, and ferns in California, which constitutes nearly 50% of the total collection. The holdings from Southern California exceed 250,000 and are unsurpassed by any other herbarium. Approximately 95% of the collection is composed of mounted sheets and filed according to a standardized system of classification. Ancillary collections that augment the collection include a cone & fruit collection, wood collection, fluid preserved collection, and pollen and anatomy slide collection.

Contacts

Namenone
Rolenone
Emailseinetadmin@asu.edu
Namenone
Rolenone
Emailseinetadmin@asu.edu
Name Mare Nazaire, Administrative Curator
Rolenone
Emailmnazaire@calbg.org
Name Mare Nazaire, Administrative Curator
Rolenone
Emailmnazaire@calbg.org
Name Mare Nazaire, Administrative Curator
Rolenone
Emailmnazaire@calbg.org
This table shows any data corrections that were performed on this recordset to improve the capabilities of iDigBio Search. The first column represents the correction performed. The last two columns represent the number and percentage of records that were corrected. A complete list of the data quality flags and their descriptions can be found here. Clicking on a data flag name will take you to a search for all records with this flag in this recordset.
FlagRecords With This Flag(%) Percent With This Flag
idigbio_isocountrycode_added  i818155
91.756
dwc_datasetid_added  i685898
76.923
dwc_parentnameusageid_added  i685898
76.923
dwc_taxonomicstatus_added  i685898
76.923
gbif_canonicalname_added  i685898
76.923
gbif_genericname_added  i685898
76.923
gbif_taxon_corrected  i685898
76.923
dwc_taxonid_replaced  i685539
76.883
gbif_vernacularname_added  i612050
68.641
dwc_multimedia_added  i515318
57.793
dwc_scientificnameauthorship_replaced  i509580
57.149
gbif_reference_added  i503276
56.442
dwc_taxonrank_replaced  i394548
44.248
taxon_match_failed  i274596
30.796
geopoint_datum_missing  i143847
16.132
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15.478
dwc_class_replaced  i91404
10.251
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8.255
dwc_taxonremarks_added  i53061
5.951
dwc_genus_replaced  i35022
3.928
dwc_scientificnameauthorship_added  i33778
3.788
dwc_continent_replaced  i31877
3.575
geopoint_low_precision  i22350
2.507
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2.303
dwc_family_replaced  i18255
2.047
rev_geocode_eez  i10637
1.193
dwc_infraspecificepithet_replaced  i6489
0.728
geopoint_datum_error  i4608
0.517
dwc_kingdom_suspect  i3221
0.361
dwc_order_replaced  i2895
0.325
dwc_country_replaced  i1697
0.19
dwc_stateprovince_replaced  i1291
0.145
rev_geocode_mismatch  i1223
0.137
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0.111
dwc_phylum_added  i473
0.053
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0.052
dwc_kingdom_added  i460
0.052
rev_geocode_failure  i443
0.05
dwc_class_added  i430
0.048
dwc_order_added  i430
0.048
rev_geocode_corrected  i409
0.046
dwc_taxonid_added  i359
0.04
dwc_acceptednameusageid_added  i324
0.036
dwc_continent_added  i289
0.032
dwc_specificepithet_added  i240
0.027
dwc_taxonremarks_replaced  i209
0.023
rev_geocode_lon_sign  i183
0.021
rev_geocode_flip  i79
0.009
dwc_family_added  i68
0.008
rev_geocode_both_sign  i68
0.008
rev_geocode_lat_sign  i45
0.005
datecollected_bounds  i37
0.004
rev_geocode_flip_both_sign  i34
0.004
dwc_phylum_replaced  i26
0.003
dwc_country_added  i21
0.002
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0.002
rev_geocode_eez_corrected  i11
0.001
geopoint_0_coord  i10
0.001