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Vascular Plant Collection, University of Washington Herbarium

Specimen Records: 265,729
Media Records: 123,638
iDigBio Last Ingested Date: 2026-02-24

The herbarium's total holdings number over 600,000 specimens of vascular and nonvascular plants, fungi, lichens, and marine algae. The herbarium maintains a regional focus on the Pacific Northwest, covering Washington, Oregon, Idaho, Montana, Alaska, British Columbia, and the Yukon Territory. Other significant collections come from California, the rest of Western North America, and the Pacific Rim. Our oldest specimens date to the late 1800's. Particularly active periods of growth for the herbarium occurred with the incorporation of the herbarium of J. William Thompson in 1943, collections made under the direction of C. Leo Hitchcock in the 1930's - 1950's, and field work since 2002.

Contacts

Name David Giblin
RoleCollections Manager
Emailwtu@uw.edu
Name Ben Legler
RoleInformatics Specialist
Emailblegler@u.washington.edu
Name David Giblin
RoleCollections Manager
Emailwtu@uw.edu
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  i256565
96.551
dwc_continent_added  i256189
96.41
dwc_country_replaced  i238131
89.614
dwc_datasetid_added  i223144
83.974
dwc_kingdom_added  i223144
83.974
dwc_parentnameusageid_added  i223144
83.974
dwc_taxonid_added  i223144
83.974
dwc_taxonomicstatus_added  i223144
83.974
gbif_canonicalname_added  i223144
83.974
gbif_genericname_added  i223144
83.974
gbif_taxon_corrected  i223144
83.974
dwc_phylum_added  i223143
83.974
dwc_class_added  i223142
83.974
dwc_order_added  i222836
83.858
gbif_vernacularname_added  i207399
78.049
dwc_multimedia_added  i175551
66.064
gbif_reference_added  i175079
65.886
dwc_scientificnameauthorship_replaced  i164008
61.72
dwc_taxonrank_replaced  i146231
55.03
taxon_match_failed  i100260
37.73
geopoint_datum_missing  i54359
20.457
dwc_originalnameusageid_added  i43375
16.323
dwc_specificepithet_replaced  i31476
11.845
dwc_taxonremarks_added  i25621
9.642
dwc_scientificnameauthorship_added  i19037
7.164
rev_geocode_eez  i15167
5.708
geopoint_low_precision  i14899
5.607
dwc_infraspecificepithet_added  i9474
3.565
dwc_genus_replaced  i9190
3.458
dwc_family_replaced  i4822
1.815
dwc_infraspecificepithet_replaced  i2569
0.967
rev_geocode_failure  i1524
0.574
dwc_kingdom_suspect  i1510
0.568
rev_geocode_mismatch  i1399
0.526
geopoint_0_coord  i734
0.276
geopoint_similar_coord  i730
0.275
dwc_acceptednameusageid_added  i333
0.125
dwc_stateprovince_replaced  i267
0.1
geopoint_datum_error  i224
0.084
rev_geocode_corrected  i155
0.058
rev_geocode_lat_sign  i78
0.029
rev_geocode_lon_sign  i75
0.028
dwc_family_added  i18
0.007
dwc_taxonrank_added  i3
0.001
rev_geocode_both_sign  i2
0.001
rev_geocode_eez_corrected  i2
0.001
dwc_country_added  i1
0
geopoint_bounds  i1
0