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Cedar Elm

Ulmus crassifolia

Cedar elm is a tough southern elm with rough small leaves, fall flowers, yellow foliage, and wildlife seed value.

  • Rough small leaves
  • South-central North America
  • Fall flowers and seed
Cedar Elm showing field marks described in the Species Showcase.
Image: Cliff from Arlington, Virginia, USA · CC BY 2.0

At a glance

  • TypeDeciduous tree
  • RangeSouth-central North America
  • Size50 to 70 feet
  • SeasonFall flowers and seed
  • Color/FormSmall rough green leaves
Range & community finds

Where it grows in the wild

Cedar elm is cited from the south-central United States into adjacent northeastern Mexico; this map shows resolved U.S. source units with public observations.12

Field marks

How to recognize it

Start with the whole plant, then confirm with two close details and the setting.

Small rough leaves

Small rough leaves is one of the clearest visible cues for Cedar Elm.

Serrated leaf edges

Serrated leaf edges is one of the clearest visible cues for Cedar Elm.

Rounded shade crown

Rounded shade crown is one of the clearest visible cues for Cedar Elm.

Don't mix it up

Lookalikes & how to tell them apart

Use these comparisons to keep Cedar Elm from blending into similar plants.

Siberian elm

larger weedy seed crop. Siberian elm often has a different leaf shape and an earlier heavy seed crop.

Black poplar

poplar leaf shape. Black poplar leaves are broader and not rough like cedar elm.

The story

The elm that flowers in fall

A cedar elm leaf feels tougher than it looks. It is small, toothed, and rough to the touch, the kind of leaf that asks for a close look rather than a quick glance from under the crown. Cedar elm waits until fall to flower, when many familiar shade trees are winding down.

That fall timing is its best wow moment. Many elms flower in spring, but cedar elm sends out its small blooms and seeds late in the season. The flowers are not showy, so the tree can be doing something unusual while still looking like ordinary shade from the sidewalk.

Recognition is a leaf-first exercise. Look for small rough leaves with toothed edges, then step back to see the rounded crown and fine branching. Compare it with siberian elm if both grow nearby. A cedar elm often feels denser and more textured, while the leaf surface gives the hand and eye a second clue.

The soil story is modest but important. Cedar elm can grow in tight, dry, or limestone-influenced soils, and its small leaves return to the litter layer beneath the tree. That fallen leaf layer shades the surface, feeds decomposers, and helps the tree make its own small woodland floor even on a city lot.

First recorded here in Texas, cedar elm is a good reminder that not every flower announces itself with color. In late summer or fall, pause under the canopy and check the twigs. Notice whether seed or tiny flowers are present, then look down at the rough leaves underfoot. The tree’s calendar is written small.

Cedar elm belongs to the south-central North American landscape, from parts of the southern United States into northeastern Mexico. This map shows the cited U.S. state portion that could be resolved cleanly, with public observations adding local record context. It is a cautious picture of occurrence, not a claim that the tree stops at a drawn edge.

The tree’s toughness is easy to underestimate because the flowers are small and the leaves are plain. In a dry yard or along a hot street, that plainness becomes a strength. The rough leaf surface, tight branching, and tolerance of difficult soils make cedar elm feel like a tree built for persistence more than display.

For a field note, compare seasons. Photograph a summer leaf, then return in fall to look for flowers, seed, and yellowing foliage. Notice whether small leaves collect under the canopy or blow into nearby grass. The tree can teach a slow calendar if the observer gives it more than one visit.

That repeat visit also helps separate cedar elm from trees noticed only for summer shade.

The small leaves make that comparison easier because their rough surface is a detail many other shade trees do not share.

Ecology

Its place in the ecological web

The plant works through flowers, leaves, roots, and the small habitat around its base.

Fall flowers

Late elm bloom

Fall flowers and seeds add a late-season pulse for small insects and seed-eating wildlife.2

Soil & leaf fall

Tough soil shade

Small leaves fall into the litter layer and can break down beneath a canopy that tolerates tight or dry soils.2

Timing

When to look

Cedar elm leafs out in spring, flowers and seeds in fall, then turns yellow before leaf drop.2

Leaves
Flowers
  • Peak bloom
  • Fading & dried heads
  • Leaves out
In Leafari

Found one? Keep a field journal

Save this species to your journal, earn its badge, and see community discoveries on an approximate, privacy-safe map.

  1. 1Photograph the whole plant and one close detail.
  2. 2Check leaves, flowers, fruit, stems, and growth habit before naming it.
  3. 3Compare the setting and soil conditions.
Cedar Elm Leafari badge.

Cedar Elm Badge

Earned when you identify this species in Leafari.

In the Leafari community

1Total finds logged
1Explorers journaled it

First found in Texas, United States, by Pure-Friend-3

References

Sources

Key facts and claims trace back to a named reference. Superscript numbers in the text link here.

  1. GBIF species record: Ulmus crassifolia Taxonomy and observations
  2. USDA Forest Service Southern Research Station: Ulmus crassifolia Native range and species account
  3. Lady Bird Johnson Wildflower Center: Ulmus crassifolia Description and native plant context
  4. Wikimedia Commons image: Cedar Elm Image license and attribution
  5. Leafari app records First-found and community snapshot