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Unknown

Ulmus rubra Muhl.

Red elm, Slippery elm

Ulmaceae (Elm Family)

Synonyms: Ulmus fulva

USDA Symbol: ULRU

USDA Native Status: Native to U.S.

A 40-60 ft. tree with a somewhat vase-shaped outline. Branchlets are less pendulous than U. americana. Dark green, rough leaves with fuzzy undersides. Tree with broad, open, flat-topped crown of spreading branches and large rough leaves.

The thick, slightly fragrant, edible, gluelike inner bark is dried and afterwards moistened for use as a cough medicine or as a poultice. This slippery inner bark (found by chewing through the outer bark of a twig) is helpful in identification. The Latin species name refers to the large brown buds covered with rust-colored hairs.

 

From the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Tree
Size Class: 36-72 ft.
Fruit Type: Samara
Leaf Color: Green
Autumn Foliage: yes
Fruit Color: Green

Bloom Information

Bloom Color: Red , Yellow , Green , Brown
Bloom Time: Jan , Dec

Distribution

USA: AL , AR , CT , DE , FL , GA , IL , IN , IA , KS , KY , LA , ME , MD , MA , MI , MN , MS , MO , NE , NH , NJ , NY , NC , ND , OH , OK , PA , RI , SC , SD , TN , TX , VT , VA , WV , WI , DC
Canada: ON , QC
Native Distribution: S.w. ME through extreme s. Que. & Ont., to s.e. ND, s. to n.w. FL, GA & c. TX
Native Habitat: Rich bottomlands; stream banks; idle ground
USDA Native Status: L48(N), CAN(N)

Growing Conditions

Water Use: High
Light Requirement: Sun , Part Shade
Soil Moisture: Moist
Soil pH: Alkaline (pH>7.2)
CaCO3 Tolerance: High
Soil Description: Moist, rich to dry, limestone soils.
Conditions Comments: Susceptible to Dutch elm disease. Considered weedy as it tends to infest hedges, fence rows and other idle gournd.

Benefit

Attracts: Birds , Butterflies
Larval Host: Mourning Cloak, Columbia silkmoth

Butterflies and Moths of North America (BAMONA)

Ulmus rubra is a larval host and/or nectar source for:
Question Mark
(Polygonia interrogationis)

Food Source
Learn more at BAMONA 		Mourning Cloak
(Nymphalis antiopa)

Larval Host
Learn more at BAMONA 		Columbia silkmoth
(Hyalophora columbia)

Larval Host
Learn more at BAMONA

Find Seed or Plants

View propagation protocol from Native Plants Network.

Bibliography

A Field Guide to Moths of Eastern North America (2005) Covell, C.V., Jr.
A Field Guide to Western Butterflies (Peterson Field Guides) (1999) Opler, P.A. and A.B. Wright

Search More Titles in Bibliography

Additional resources

USDA: Find Ulmus rubra in USDA Plants
FNA: Find Ulmus rubra in the Flora of North America (if available)
Google: Search Google for Ulmus rubra

Metadata

Record Modified: 2007-01-01
Research By: TWC Staff

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