• Photo of Ulmus alata (Ulmus alatas)

Plant Profile: Ulmus alata

Taxonomy: Ulmus alata

Names

Cork Elm, Small Leaf Elm, Wahoo, Winged Elm, Witch Elm

  • Photo of Ulmus alata (Ulmus alatas)

Phonetic Spelling:ULM-us a-LAY-tuh

Genus:Ulmus

Species:alata

Family:Ulmaceae

Ulmus alata, commonly known as the Winged Elm, is a deciduous tree that typically reaches heights of 40 to 60 feet and can have a diameter of 1 to 2 feet. When cultivated in open spaces, it develops a short trunk with branches that gracefully arch upward, creating a rounded crown. Conversely, in forested environments, the tree tends to grow taller and straighter. This species can be found in various natural settings, including rocky outcrops, dry woodlands, fields, and areas that have been disturbed.

The Winged Elm thrives in full to partial sunlight and can adapt to a range of moisture levels, from moist to dry conditions. It is versatile regarding soil types, tolerating loam, clay, sand, and rocky substrates. The tree's ultimate size is influenced by soil fertility and moisture levels. Regular pruning of young trees is recommended to prevent the development of multiple trunks.

The leaves of the Winged Elm are arranged alternately, featuring a doubly serrated edge and an asymmetrical base. In autumn, the foliage turns a vibrant yellow. The bark varies in color from red-brown to ashy gray, characterized by flat-topped ridges separated by irregular fissures. In late winter, clusters of small red flowers emerge. The tree produces flattened samaras, measuring between 1/4 and 1/2 inch, with a hairy edge.

In terms of pests and diseases, the Winged Elm faces threats from various insects, including beetles, borers, caterpillars, leaf miners, and scale. It is particularly vulnerable to Dutch Elm disease, a lethal fungal infection spread by beetles, for which there is no effective treatment. Other potential issues include powdery mildew, phloem necrosis, cankers, and leaf spots, especially in trees that are under stress.

Ulmus alata Feature Summary

Ulmus alata Image Gallery

Tags

#slow growing
#rich soil
#Piedmont Mountains FACU
#open
#loamy soil
#eastern comma butterfly
#drupes
#old fields
#wet soils tolerant
#rough leaves
#painted lady butterfly
#small flowers
#fields
#deciduous
#forests
#Braham Arboretum
#rough
#shade garden
#black fruits
#low maintenance
#fall color yellow
#food source
#bird friendly
#organic soils
#shade tolerant
#shade tree
#faculative upland
#green
#moth larvae
#Coastal FACU
#green flowers
#low flammability
#yellow
#winter interest
#late winter flowers
#food source spring
#piedmont
#dry soils tolerant
#dark green
#wet sites
#woodlands
#well-drained soil
#NC native
#fantz
#winter flowers
#full sun tolerant
#tree
#early spring flowers
#fruits
#green leaves
#red-spotted purple butterfly
#food source herbage
#native
#brown flowers
#food source hard mast fruit
#mammals
#FACU
#deer resistant
#butterfly larvae
#partial shade tolerant
#fall color
#pollinator garden
#loamy soils tolerant
#small mammals
#air pollution tolerant
#woody
#deciduous tree
#mourning cloak butterflies
#loam
#flowering tree
#clusters
#small and large mammals
#larval host tree
#small tree
#gray bark
#fire resistant
#butterfly friendly
#native tree
#exfoliating bark
#winter garden
#spring interest
#fall color bronze
#moths
#partial sun
#coastal plants
#rounded
#heat tolerant
#mountains
#audubon
#large shade tree
#red-brown
#larval host plant
#question mark butterfly
#native garden
#wildlife plant
#showy flowers
#moist soil
#disturbed areas
#large tree
#winged fruits
#spring flowers

Similar Plants

Ulmus alata is often confused with:

Ulmus alata Feature Summary

Attributes
The heavy wood is used for furniture, crates, and boxes.
Eastern and central North America
Southeastern United States, Virginia to Florida, west to Illinois, Missouri, and Texas.
This plant supports the following larvae: Painted Lady (Vanessa cardui), Eastern Comma (Polygonia comma), Mourning Cloak (Nymphalis antiopa), Question Mark Butterfly (Polygonia interrogationis). Questionmark butterflies have an interesting life cycles: overwintered adult Question Mark butterflies lay eggs from spring until the end of May. These will appear as summer adults from May-September, laying eggs that then develop into the winter adult form. The winter adults appear in late August and shelter for the winter starting the cycle all over again. Adult Question Mark butterflies feed on rotting fruit, tree sap, dung, and carrion only visiting flowers for feeding when absolutely necessary. Painted Lady (Vanessa cardui) and Red-spotted Purple (Limenitis arthemis astyanax) rarely use this host plant in North Carolina. It is also a host plant for the Red Spotted Purple butterflies. The seeds are eaten by songbirds and small mammals.
Resistant to fire and moderately resistant to damage from deer.
Wildlife Food Source
Shade
Wildlife Nesting
Wildlife Cover/Habitat
Wildlife Larval Host
low flammability
Fruit
Small drupe but very distinctive, covered with light colored fuzz, 1/3 inch long, tipped at the end with two long, curving bristles. The seeds mature in April-May as the leaves reach full size. In North Carolina, fruits are available from March to April.
Samara
Drupe
Flowers
Insignificant, 1/4 inch, brownish-green flowers appear in clusters in late winter to early spring before the foliage emerges. The flower is typically very small with curling fuzzy stigmas. In North Carolina, flowers are available from February to March.
Gold/Yellow
Green
Spring
Winter
< 1 inch
Leaves
Alternate, ovate to elliptic, pointed, rough-textured dark green leaves (1.5 to 3.5 inches long) with doubly toothed margins and asymetrical bases. The leaves typically turn an undistinguished dull yellowish-green in fall.
Elliptical
Ovate
Oblong
Serrate
Doubly Dentate
1-3 inches
< 1 inch
Bark
The bark is red-brown to ashy gray with flat topped ridges that are separated by irregular fissures. Scaly, shredding, patchy and grayish-brown, some reddish where bark exfoliates.
Dark Gray
Light Brown
Red/Burgundy
Fissured
Shredding
Exfoliating
Stem
Stems usually have two wide corky ridges or wings.
Corky Ridges
Whole Plant Traits
Perennial
Tree
Native Plant
Rounded
Erect
Pyramidal
Open
Vase
Medium
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)
Good Drainage
Moist
Occasionally Dry
more than 60 feet
24-60 feet
Coastal
Mountains
Piedmont
Clay
High Organic Matter
Loam (Silt)
Sand
Landscape
Butterfly Garden
Pollinator Garden
Winter Garden
Native Garden
Shade Tree
Specimen
Street Tree
Deer
Wet Soil
Dry Soil
Fire
Woodland
Naturalized Area
Butterflies
Pollinators
Songbirds
Moths
Small Mammals

Ulmus alata Attributes

Ulmus alata: Uses (Ethnobotany)

The heavy wood is used for furniture, crates, and boxes.

Ulmus alata: Country Or Region Of Origin

Eastern and central North America

Ulmus alata: Distribution

Southeastern United States, Virginia to Florida, west to Illinois, Missouri, and Texas.

Ulmus alata: Wildlife Value

This plant supports the following larvae: Painted Lady (Vanessa cardui), Eastern Comma (Polygonia comma), Mourning Cloak (Nymphalis antiopa), Question Mark Butterfly (Polygonia interrogationis). Questionmark butterflies have an interesting life cycles: overwintered adult Question Mark butterflies lay eggs from spring until the end of May. These will appear as summer adults from May-September, laying eggs that then develop into the winter adult form. The winter adults appear in late August and shelter for the winter starting the cycle all over again. Adult Question Mark butterflies feed on rotting fruit, tree sap, dung, and carrion only visiting flowers for feeding when absolutely necessary. Painted Lady (Vanessa cardui) and Red-spotted Purple (Limenitis arthemis astyanax) rarely use this host plant in North Carolina. It is also a host plant for the Red Spotted Purple butterflies. The seeds are eaten by songbirds and small mammals.

Ulmus alata: Particularly Resistant To (Insects/Diseases/Other Problems)

Resistant to fire and moderately resistant to damage from deer.

Ulmus alata: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Ulmus alata: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Ulmus alata: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Ulmus alata: Fire Risk Rating

extreme flammability
high flammability
low flammability
medium flammability

Ulmus alata Fruit

Ulmus alata: Fruit Description

Small drupe but very distinctive, covered with light colored fuzz, 1/3 inch long, tipped at the end with two long, curving bristles. The seeds mature in April-May as the leaves reach full size. In North Carolina, fruits are available from March to April.

Ulmus alata: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Ulmus alata: Fruit Color

grass
Black

Ulmus alata: Display/Harvest Time

Fall
Spring
Summer
Winter

Ulmus alata: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Ulmus alata Flowers

Ulmus alata: Flower Description

Insignificant, 1/4 inch, brownish-green flowers appear in clusters in late winter to early spring before the foliage emerges. The flower is typically very small with curling fuzzy stigmas. In North Carolina, flowers are available from February to March.

Ulmus alata: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Green

Ulmus alata: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Ulmus alata: Flower Bloom Time

Winter
Spring
Summer
Fall

Ulmus alata: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Ulmus alata Leaves

Ulmus alata: Leaf Description

Alternate, ovate to elliptic, pointed, rough-textured dark green leaves (1.5 to 3.5 inches long) with doubly toothed margins and asymetrical bases. The leaves typically turn an undistinguished dull yellowish-green in fall.

Ulmus alata: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Ulmus alata: Leaf Color

spa
Green

Ulmus alata: Deciduous Leaf Fall Color

spa
Insignificant

Ulmus alata: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Ulmus alata: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Ulmus alata: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Ulmus alata: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Ulmus alata: Hairs Present

No
Yes

Ulmus alata: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Ulmus alata: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Ulmus alata: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Ulmus alata Bark

Ulmus alata: Bark Description

The bark is red-brown to ashy gray with flat topped ridges that are separated by irregular fissures. Scaly, shredding, patchy and grayish-brown, some reddish where bark exfoliates.

Ulmus alata: Bark Color

grass
Dark Gray
grass
Light Brown
grass
Red/Burgundy

Ulmus alata: Surface/Attachment

Bumpy
Exfoliating
Fissured
Furrowed
Lenticels
Papery
Patchy
Peeling
Ridges
Scaly
Shaggy
Shiny
Shredding
Smooth
Spongy

Ulmus alata: Bark Plate Shape

Diamond
Irregular
Oval
Rectangle
Round
Square

Ulmus alata Stem

Ulmus alata: Stem Description

Stems usually have two wide corky ridges or wings.

Ulmus alata: Stem Is Aromatic

No
Yes

Ulmus alata: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Ulmus alata Whole Plant Traits

Ulmus alata: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Ulmus alata: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Ulmus alata: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Ulmus alata: Growth Rate

Slow
Medium
Rapid

Ulmus alata: Maintenance

Low
Medium
High

Ulmus alata: Texture

Fine
Medium
Coarse

Ulmus alata Cultural Conditions

Ulmus alata: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Ulmus alata: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Ulmus alata: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Ulmus alata: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Ulmus alata: NC Region

Coastal
Mountains
Piedmont

Ulmus alata: USDA Plant Hardiness Zone

thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Ulmus alata: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Ulmus alata Landscape

Ulmus alata: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Ulmus alata: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Ulmus alata: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Ulmus alata: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Ulmus alata: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees