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Recordset

Search Recordset

Iowa State University, Ada Hayden Herbarium

Specimen Records: 51,420
Media Records: 23,768
iDigBio Last Ingested Date: 2025-07-24

The Ada Hayden Herbarium has the largest collection of Iowa plants and fungi, containing over 650,000 specimens of vascular plants, bryophytes, fungi, and lichens. Functioning primarily as a research facility important for taxonomic studies (occurrence, distribution, and relationships of plants), it is also used for identifying unknown plants. Specimens are loaned to specialists at other institutions around the world to support research. Loans from other institutions allow our researchers access to other herbaria. Recently, herbaria have become a source of materials to use in molecular studies and to support basic research on biodiversity.

Contacts

Namenone
Rolenone
Emailhbrown@mailbox.sc.edu
Namenone
Rolenone
Emailhbrown@mailbox.sc.edu
Namenone
Rolenone
Emaildlewis@iastate.edu
Name Deborah Lewis
RoleCurator
Emaildlewis@iastate.edu
Name Lynn Clark
RoleInterim Manager
Emaillgclark@iastate.edu
Name Deborah Lewis
RoleCurator
Emaildlewis@iastate.edu
Name Lynn Clark
RoleInterim Manager
Emaillgclark@iastate.edu
  • Data Corrected
  • Data Use
  • Raw
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
dwc_datasetid_added  i41381
80.476
dwc_parentnameusageid_added  i41381
80.476
dwc_phylum_replaced  i41381
80.476
dwc_taxonomicstatus_added  i41381
80.476
gbif_canonicalname_added  i41381
80.476
gbif_genericname_added  i41381
80.476
gbif_taxon_corrected  i41381
80.476
dwc_class_added  i41380
80.475
dwc_taxonid_replaced  i41380
80.475
gbif_vernacularname_added  i39080
76.002
gbif_reference_added  i37019
71.993
dwc_multimedia_added  i34720
67.522
idigbio_isocountrycode_added  i31787
61.818
dwc_scientificnameauthorship_replaced  i31741
61.729
dwc_continent_added  i31650
61.552
taxon_match_failed  i27205
52.907
dwc_taxonrank_replaced  i26772
52.065
dwc_country_replaced  i26375
51.293
dwc_originalnameusageid_added  i10882
21.163
dwc_genus_replaced  i4360
8.479
dwc_taxonremarks_added  i3817
7.423
dwc_specificepithet_replaced  i3497
6.801
dwc_scientificnameauthorship_added  i1683
3.273
dwc_family_replaced  i827
1.608
dwc_infraspecificepithet_added  i621
1.208
dwc_kingdom_suspect  i221
0.43
geopoint_datum_missing  i139
0.27
geopoint_low_precision  i93
0.181
rev_geocode_mismatch  i83
0.161
rev_geocode_corrected  i69
0.134
rev_geocode_failure  i40
0.078
rev_geocode_flip  i37
0.072
rev_geocode_eez  i36
0.07
rev_geocode_flip_both_sign  i31
0.06
dwc_stateprovince_replaced  i16
0.031
dwc_genus_added  i5
0.01
dwc_family_added  i4
0.008
dwc_acceptednameusageid_added  i2
0.004
dwc_infraspecificepithet_replaced  i1
0.002
dwc_specificepithet_added  i1
0.002
dwc_taxonid_added  i1
0.002
dwc_taxonrank_added  i1
0.002
rev_geocode_lat_sign  i1
0.002
specimen list