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// SPECIES PROFILE · SHRUB · NATIVE · THICKET-FORMING

Roughleaf Dogwood

Cornus drummondii

The unsung dogwood of the southern Plains. Where flowering dogwood (Cornus florida) belongs to the deep shade of the Ozark and Ouachita uplands, roughleaf dogwood belongs to the sun-warmed prairie edge — old fence rows, fallow pasture corners, creek terraces, and the brushy ecotone where Cross Timbers oak savanna meets tallgrass. In late spring it throws flat-topped cymes of small white flowers that swarm with native bees, and by August those flowers have ripened into pearly white drupes held up on coral-red pedicels — one of the single most-stripped fruit crops for migrating songbirds in NE Oklahoma. Sandpaper-textured upper leaf surfaces give the species its name.

// QUICK FACTS
Family
Cornaceae (dogwood family)
Group
Deciduous shrub or small multi-stemmed tree
Native range
Central & south-central US; ubiquitous in OK
USDA hardiness
Zones 5–8 (Tulsa = 7a/7b)
Mature size
10–15 ft tall × 10–15 ft wide (clonal spread larger)
Sun
Full sun to part shade (flowers/fruits best in sun)
Soil
Adaptable — clay, loam, rocky upland; tolerates wet feet; pH 5.5–8.0
Water
Drought-tolerant once established
Bloom time
Late May – mid June (flat cymes)
Fruit ripe
August – September (white drupes, red pedicels)
Wildlife value
~50 native bee spp at bloom · 40+ bird spp on fruit
Larval host
Spring azure butterfly · multiple Antispila leafminers
Ecological role
Thicket native · pollinator + bird forage · prairie edge
Roughleaf Dogwood (Cornus drummondii) — flat-topped white flower cyme on a thicket-forming prairie-edge shrub
Cornus drummondii. Photo via Wikipedia / Wikimedia Commons.

Identification

[ field key — habit · leaf texture · cymes · drupes ]

Habit & Bark

Multi-stemmed thicket-forming shrub or small tree, typically 10–15 ft tall in NE Oklahoma though older clones in deep alluvial soil can push to 20 ft with one or two dominant trunks. Spreads aggressively by root suckers, forming dense circular colonies (cornel thickets) that can reach 30–50 ft across in a few decades on undisturbed ground. Young twigs are slender, reddish-brown to gray, with the characteristic dogwood-family opposite branching. Bark on old stems is gray-brown, shallowly furrowed and broken into small blocky plates — never showy.

Leaves — the diagnostic feel

Opposite, simple, ovate to elliptic, 2–5 in long with a pointed tip and entire margin. The diagnostic feature is in the hand: the upper leaf surface is distinctly rough to the touch — like fine sandpaper — from short stiff appressed hairs. The lower surface is paler, densely woolly. Lateral veins (typically 3–5 pairs) curve forward and parallel the leaf margin in the classic dogwood arc — gently bend a leaf and the veins remain intact, hanging in fine threads. Fall color is a muted purple to burgundy, less brilliant than C. florida.

Flowers — flat cymes, not bracts

Unlike C. florida, roughleaf has no showy bracts. Flowers are tiny (4 mm), creamy white, four-petaled, borne in flat-topped to slightly domed cymes 2–3 in across at the tips of new growth. Bloom in NE Oklahoma typically runs from the last week of May into mid June — a critical late-spring nectar pulse that bridges the redbud/serviceberry early bloom and the summer composites. Mildly malodorous up close, but the cymes are dense with sweat bees, mining bees, soldier beetles and small flies.

Fruit & Confusables

The August fruit is unmistakable: pearly white drupes the size of small peas, held up on bright coral-red pedicels that persist on the cyme after birds have stripped the fruit, like little red-fingered hands. Distinguished from gray dogwood (C. racemosa, rare in OK) by the rough leaf and pubescent twig; from silky dogwood (C. amomum, eastern OK creek bottoms) by white (not blue) fruit and rough (not silky) leaves; from flowering dogwood by the absence of bracts and the multi-stemmed thicket habit.

Habitat & Range in NE Oklahoma

Cornus drummondii is a south-central native whose range arcs from southern Ontario and the Great Lakes states south through the Midwest and into east Texas, with NE Oklahoma squarely in the heart of its distribution. It is one of the most common native shrubs across the entire Tulsa metro and eastward into the Ozark foothills, found on essentially every roadside, fence row, abandoned lot, riparian terrace and pasture-edge from Bartlesville south to the Arkansas River and east through Tahlequah. It tolerates the full range of regional soils — deep alluvial bottoms along the Verdigris, Caney and Arkansas; chert-and-sandstone uplands of the Cross Timbers; heavy red clay of the prairie peneplain; and disturbed urban fill.

Ecologically, roughleaf is an edge species — it does not recruit under closed forest canopy and it does not establish in tight prairie sod, but it explodes into any disturbed sunny ground adjacent to a seed source. In the historical pre-settlement landscape it was held in check by frequent prairie fire and by bison/elk browsing, occupying narrow bands along watercourses, fire shadows, and rocky breaks. Post-settlement fire suppression and overgrazing have converted it — alongside winged elm, eastern redcedar and smooth sumac — into one of the dominant brushy invaders of unmanaged tallgrass prairie across the Osage and Pawhuska region. From the standpoint of a homeowner or a small-acreage ecological restorationist, this same trait makes it the easiest native shrub in the region to establish.

Ecology & Wildlife Value

[ pollinators · frugivory · thicket nesting · lepidoptera ]

Pollinators

The flat-topped cymes are accessible to short-tongued visitors, drawing a diverse pollinator assemblage: native sweat bees (Halictus, Lasioglossum, Augochlora), mining bees (Andrena), small carpenter bees (Ceratina), soldier beetles, longhorn beetles, syrphid flies, and tachinid flies. Studies of related Cornus species in the Midwest have documented 40–60 native-bee species visiting the flowers; in NE Oklahoma the number is similar. Honeybees use it heavily for both pollen and nectar.

Birds & Fall Migration

The white drupes ripen in August–September, perfectly timed to fall migration. Thrushes (wood thrush, Swainson's thrush, gray-cheeked thrush), catbirds, mockingbirds, brown thrashers, cedar waxwings, eastern bluebirds, robins, scarlet and summer tanagers, and northern flickers all feed heavily; the lipid-rich drupe is a high-value migration fuel. Wild turkey, bobwhite quail, and small mammals take fallen fruit. The thicket habit itself is just as valuable as the fruit — dense low cover for nesting brown thrashers, gray catbirds, white-eyed vireos, indigo buntings, and bell's vireo in western OK.

Lepidoptera

Larval host for the spring azure butterfly (Celastrina ladon) — one of our earliest spring fliers — whose larvae feed on the flower buds. Also hosts several specialist leafminer moths in the genus Antispila, the dogwood thyatirid (Euthyatira pudens), and the cecropia moth as one of many woody hosts. Doug Tallamy's Lepidoptera-host research lists the dogwood genus among the top woody plants for caterpillar production in eastern North America.

Soil & Erosion

Dense interlocking root system — thicket suckers can produce a near-continuous root mat 12–24 in deep, making this an excellent shrub for stabilizing eroding stream banks, gully heads and cut slopes. NRCS lists it among recommended species for streambank bioengineering across the southern prairies. It also takes well from hardwood cuttings, making it cheap and fast for restoration plantings.

Where it earns its keep: A 50-ft hedgerow of roughleaf dogwood on the back edge of a Tulsa property will, by year three, host more bird activity than any single ornamental on the lot. Combine with eastern redcedar, chickasaw plum and fragrant sumac for a four-season layered windbreak that needs essentially no input after establishment.
Suckering — manage the edges: Roughleaf will crawl outward via root suckers 1–3 ft per year on good ground. Mow the colony edge once or twice a year if you need a defined boundary, or allow the thicket to expand into a wildlife block. Do not plant within 10 ft of vegetable beds or fine perennial borders unless you intend to mow against it.

Horticulture & Care

[ siting · planting · pruning · pests · design uses ]

When to plant intentionally

Choose roughleaf dogwood when you need a tough, fast, native shrub for a hedgerow, wildlife border, screening edge, or stream buffer. It is one of the cheapest and most effective ways to add pollinator and bird habitat to a NE Oklahoma property. It is not a refined ornamental and should not be sited where its tendency to sucker, its modest fall color, and its mildly unpleasant flower odor will be liabilities.

Planting & establishment

Pruning & renewal

Roughleaf responds vigorously to coppicing — cutting older stems to the ground in late winter promotes new vigorous shoots with the brightest twig color and the heaviest flower/fruit set. A practical maintenance regime is to renewal-prune one-third of the oldest stems each year on a three-year rotation, which keeps the thicket dense and productive indefinitely. Mow the outside edge of the colony once or twice a year if you need to hold it in shape.

Pests & diseases

Cultivars & selections

Roughleaf dogwood has not been aggressively bred and the species is almost always sold straight, often as locally collected ecotypes from regional native-plant nurseries (Sunshine Nursery, Wild Things Nursery, the Oklahoma Forestry Services Forest Regeneration Center seedling program). Two named selections occasionally appear in commerce:

SelectionDistinguishing featureNotes for Tulsa
Straight species (local ecotype) Variable habit, full genetic diversity Best for ecological plantings; ask nurseries for OK / Kansas seed source.
Plant-grown clones from cuttings Uniform habit, fast establishment Useful for hedgerows where uniformity matters; reduces genetic diversity.
Small-leaved forms Tighter habit, smaller mature size Occasionally selected from the wild; not widely available.

For most Tulsa-region plantings, buy seedling stock from a regional native grower rather than a named clone — the genetic diversity makes for a more resilient, longer-flowering colony.

Cultural & Material Uses

Roughleaf dogwood is a workhorse of the central US flora rather than a celebrated cultural plant, but it has a documented place in Indigenous use and a long history in conservation and agroforestry plantings.

Sources & Further Reading

  • USDA NRCS PLANTS Database — Cornus drummondii: plants.usda.gov/plant-profile/CODR
  • USDA Forest Service Fire Effects Information System (FEIS) — Cornus drummondii: fs.usda.gov/database/feis/plants/shrub/cordru
  • Lady Bird Johnson Wildflower Center — Native Plant Database, Cornus drummondii: wildflower.org — CODR
  • Missouri Botanical Garden Plant Finder — Cornus drummondii cultural and design notes.
  • Oklahoma Biological Survey — Vascular Plants of Oklahoma, Cornus drummondii distribution and county-level records.
  • Oklahoma State University Extension — Native Shrubs for the Oklahoma Landscape (HLA-6444) and the OSU Native Plants for Oklahoma Landscapes series.
  • Tallamy, D.W. (2009/2020), Bringing Nature Home — on the high Lepidoptera-host value of Cornus spp.
  • Moerman, D.E. — Native American Ethnobotany Database, Cornus drummondii entries (naeb.brit.org).
  • Wikipedia — Cornus drummondii: en.wikipedia.org/wiki/Cornus_drummondii
  • USDA NRCS Plant Guide / Plant Fact Sheet — Cornus drummondii, streambank and windbreak applications.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

Along a stream or seasonal floodplain, roughleaf dogwood pairs naturally with: american hornbeam (Carpinus caroliniana), crossvine (Bignonia capreolata), cardinal flower (Lobelia cardinalis), eastern gamagrass (Tripsacum dactyloides), american elderberry (Sambucus canadensis), and american sycamore (Platanus occidentalis).

Site roughleaf dogwood on the woodland edge or in the mid-layer of a guild beneath taller canopy trees.

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