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Vascular Plant Collection, University of Washington Herbarium

Specimen Records: 262,626
Media Records: 115,296
iDigBio Last Ingested Date: 2026-02-19

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  i253498
96.524
dwc_continent_added  i253123
96.382
dwc_country_replaced  i235541
89.687
rev_geocode_failure  i228673
87.072
dwc_datasetid_added  i220166
83.833
dwc_kingdom_added  i220166
83.833
dwc_parentnameusageid_added  i220166
83.833
dwc_taxonid_added  i220166
83.833
dwc_taxonomicstatus_added  i220166
83.833
gbif_canonicalname_added  i220166
83.833
gbif_genericname_added  i220166
83.833
gbif_taxon_corrected  i220166
83.833
dwc_phylum_added  i220165
83.832
dwc_class_added  i220164
83.832
rev_geocode_mismatch  i220073
83.797
dwc_order_added  i219858
83.715
gbif_vernacularname_added  i204537
77.881
dwc_multimedia_added  i173066
65.898
gbif_reference_added  i172768
65.785
dwc_scientificnameauthorship_replaced  i161707
61.573
dwc_taxonrank_replaced  i144051
54.85
taxon_match_failed  i99472
37.876
geopoint_datum_missing  i53796
20.484
dwc_originalnameusageid_added  i42716
16.265
dwc_specificepithet_replaced  i31066
11.829
dwc_taxonremarks_added  i25335
9.647
dwc_scientificnameauthorship_added  i18820
7.166
geopoint_low_precision  i14715
5.603
dwc_infraspecificepithet_added  i9297
3.54
dwc_genus_replaced  i9106
3.467
dwc_family_replaced  i4806
1.83
dwc_infraspecificepithet_replaced  i2538
0.966
dwc_kingdom_suspect  i1504
0.573
geopoint_0_coord  i733
0.279
geopoint_similar_coord  i731
0.278
dwc_acceptednameusageid_added  i330
0.126
dwc_stateprovince_replaced  i239
0.091
geopoint_datum_error  i224
0.085
dwc_family_added  i15
0.006
rev_geocode_eez  i4
0.002
dwc_taxonrank_added  i3
0.001
dwc_country_added  i1
0
geopoint_bounds  i1
0