Patuxent Research Refuge, Maryland
Catalog #: PRR000139
Occurrence ID (GUID): a13d712c-27ca-483b-82aa-b91eef173ff2
Taxon: Ulmus americana var. americana
Family: Ulmaceae
Determiner: Bill Harms (March 2016)
Taxon Remarks: American Elm
ID Remarks: added variety epithet
ID References: Flora of the Southeastern United States, Weakley 2015
Show Determination History
Collector: Bill Harms   6104   
Date: 2011-03-10
Verbatim Date: 10 March 2011
Locality: United States, Maryland, Anne Arundel, Laurel, Patuxent Research Refuge--North Tract--Little Patuxent River Trail; Trailhead Little Patuxent River Trail
39.078359  -76.771508 +-20m.  WGS84
Verbatim Coordinates: 39.078359 -76.771508
Elevation: 35 meters Verbatim Elevation: 113 feet
Habitat: Maple-oak woods
Associated Species: Acer rubrum, Quercus
Preparations: Imaged Voucher
Notes: Native
Specimen Images
Author: Bill Harms
Access Rights: The database records found here may be used by researchers for non-commercial purposes. If any of these records are used in an analysis, report or publication, the provenance of the original data must be acknowledged and the PRR Herbarium notified.
Record ID: a13d712c-27ca-483b-82aa-b91eef173ff2
For additional information on this specimen, please contact: Bill Harms (
Current Record
Patuxent Research Refuge, Maryland (USFWS:PRR)
Bill Harms 61042011-03-10
Catalog Number: PRR000139
GUID: a13d712c-27ca-483b-82aa-b91eef173ff2
Latest Identification: Ulmus americana var. americana
Identified by: Bill HarmsMarch 2016

University of Maryland, Norton-Brown Herbarium (MARY)
Bill Harms 61042011-03-10
Catalog Number: MARY1028991
Latest Identification: Ulmus americana L.

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