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Ulmus thomasii Sarg.
ROCK ELM
Life   Plantae   Dicotyledoneae   Ulmaceae   Ulmus


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Links

Associates · map
FamilyScientific name @ source (records)
Aphididae  Eriosoma ulmi @ NCSU_ENT (8)

Tinocallis platani @ CSCA_TCN (1)

Tinocallis ulmifolii @ NCSU (7)
Coccidae  Parthenolecanium corni @ CSCA_TCN (1)
Eriococcidae  Eriococcus spurius @ CSCA_TCN (1)
Ganodermataceae  Ganoderma applanatum @ BPI (1)
Gnomoniaceae  Gnomonia ulmea @ BPI (1)
_  Cylindrosporella ulmea @ BPI (1)

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Following modified from Virginia Tech Dendrology
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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=ULTH ---> https://plants.usda.gov/java/profile?symbol=ULTH
https://plants.usda.gov/java/profile?symbol=ULTH ---> http://plants.usda.gov/core/profile?symbol=ULTH
http://plants.usda.gov/core/profile?symbol=ULTH ---> https://plants.usda.gov/core/profile?symbol=ULTH
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You are here: Home / Plant Profile

Ulmus thomasii Sarg.
rock elm

Image of Ulmus thomasii

General Information
Symbol: ULTH
Group: Dicot
Family: Ulmaceae
Duration: Perennial
Growth Habit : Tree
Native Status : CAN   N
L48   N
Characteristics
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Ulmus thumbnails at the Plants Gallery

W.D. Brush. Provided by National Agricultural Library . Originally from USDA Forest Service . United States, NY. Usage Requirements .

W.D. Brush. Provided by National Agricultural Library . Originally from USDA Forest Service . United States, NY. Usage Requirements .

W.D. Brush. Provided by National Agricultural Library . Originally from USDA Forest Service . United States, NY. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 626. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

slideshow

Synonyms

Symbol Scientific Name
ULRA Ulmus racemosa D. Thomas

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Hamamelididae
Order Urticales
Family Ulmaceae – Elm family
Genus Ulmus L. – elm
Species Ulmus thomasii Sarg. – rock elm

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Illinois rock elm Endangered
New York cork elm Threatened
Ohio rock elm Threatened

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain FAC
Eastern Mountains and Piedmont FACU
Great Plains FACU
Midwest FAC
Northcentral & Northeast FAC

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (ULTH)
Flora of North America (ULTH)
Integrated Taxonomic Information System (ULRA)
Integrated Taxonomic Information System (ULTH)
Lady Bird Johnson Wildflower Center Native Plant Information Network (ULTH)
Native American Ethnobotany (University of Michigan - Dearborn) (ULTH)
University of Tennessee Herbarium (Distribution) (ULTH)
University of Wisconsin - Stevens Point Freckmann Herbarium (ULTH)
Related Websites
American Phytopathological Society-Dutch Elm Disease (ULTH)
CO-Colorado State University Extension (Dutch Elm Disease) (ULTH)
Canada-Alberta-Dutch Elm Disease (ULTH)
Canada-Saskatchewan Dutch Elm Disease Association (ULTH)
Forestry Images (Dutch Elm Disease) (ULTH)
IA-Dutch Elm Disease Pest Alert (ULTH)
KS-Dutch Elm Disease (ULTH)
MN-Dutch Elm Disease Resistant Cultivars (ULTH)
MN-University of Minnesota Extension (Dutch Elm Disease) (ULTH)
NC-NCSU Plant Pathology Extension (ULTH)
ND-NDSU Dutch Elm Disease (ULTH)
NY-Cornell University (Dutch Elm Disease) (ULTH)
UK-Royal Horticultural Society (Dutch Elm Disease) (ULTH)
UK-The Microbial World (Dutch Elm Disease) (ULTH)
USDA FS Forest Health Protection (ULTH)
USDA FS-How To Identify And Manage Dutch Elm Disease (ULTH)
USDA Forest Service-Silvics of North America (ULTH)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 3 | Ulmaceae | Ulmus

7. Ulmus thomasii Sargent, Silva. 14: 102. 1902.

Rock elm, orme de Thomas

Ulmus racemosa Thomas 1831, not Borkhausen 1800

Trees , to 30 m; crowns oblong. Bark gray, deeply fissured with broad, flattened ridges. Wood hard. Branches short-spreading, young branches pubescent, old-growth with 3-5 prominent, irregular, corky wings; twigs reddish, pubescent. Buds brown, ovoid, acute, pubescent; scales brown, pilose on outer surface, ciliate on margins. Leaves: petiole ca. 5 mm, pubescent. Leaf blade obovate to oblong-oval, (2.5-)9-11(-16) × 2.5-5 cm, base oblique, margins doubly serrate, apex short-acuminate; surfaces abaxially white-pubescent, pubescence not tufted in axils of veins, adaxially dark green, usually glabrous, sometimes scabrous. Inflorescences racemose cymes, long-pendulous, (7-)10(-13)-flowered, to 5 cm; pedicel 0.5-1 cm. Flowers: calyx deeply lobed, divided nearly to middle, lobes 7-8; stamens 5-8; anthers dark purple; stigmas greenish, pubescent. Samaras elliptic to oval, 1.5-2.2 cm, narrowly winged, pubescent, margins short-ciliate, apex shallowly notched. Seeds inflated, not thickened. 2 n = 28.

Flowering spring. Rocky slopes, limestone outcrops, rich woods, flood plains, stream banks; 30-900 m; Ont.; Ark., Ill., Ind., Iowa, Kans., Ky., Mich., Minn., Mo., Nebr., N.H., N.J., N.Y., Ohio, S.Dak., Tenn., Vt., W.Va., Wis.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Ulmus+thomasii&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Ulmus+thomasii&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 12
Query: SELECT * FROM img WHERE ready=1 and taxon like "Ulmus thomasii%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0606 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0607 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0608 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0609 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0610 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0611 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0510 0612 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0710 0329 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0710 0330 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0710 0331 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0710 0332 [detail]
© 2010 Louis-M. Landry

Ulmus thomasii
Ulmus thomasii
ID: 0000 0000 0710 0333 [detail]
© 2010 Louis-M. Landry

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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