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Cornus L.

Dogwoods

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Treatment and Overview

Cornus L., the dogwoods, is a widespread genus of about 56 Tree TSAR-recognized species-level lineages in the dogwood family (Cornaceae). Most are deciduous or evergreen trees and shrubs, but the genus also includes the diminutive rhizomatous subshrubs of the Dwarf Dogwoods Clade: Bunchberries. Dogwoods range across much of temperate Eurasia and North America, extend through the mountains of Central and South America and southeastern Asia, and include isolated tropical African representatives. East Asia and North America are the principal centers of diversity. Familiar members include eastern flowering dogwood (Cornus florida), Japanese kousa dogwood (C. kousa), red-osier dogwood (C. sericea), pagoda dogwood (C. alternifolia), European cornelian-cherry dogwood (C. mas), and Canadian bunchberry dogwood (C. canadensis).

Global scientific consensus is that a broad concept of Cornus *is most appropriate, but a few splinter groups influential to regional floras in the U.S. continue to aggressively push an alternative taxonomy. Indeed, few familiar woody genera illustrate the difference between evolutionary relationships and taxonomic ranks as clearly as this genus. Modern phylogenomics has resolved the dogwood radiation in great detail, but different authors have translated the same underlying tree into different classifications. While the scientific consensus is to retain a single broad genus, others elevate several of its major branches to genera such as *Benthamidia, Swida, and Chamaepericlymenum. This can make the taxonomy appear more unsettled than the phylogeny really is, and result in mass taxonomic disruption for limited utility when consensus is ignored.

The essential point is simple: scientists broadly agree that the principal dogwood lineages are real. The disagreement is largely about which of those nested lineages should receive the rank of genus.

Tree TSAR recognizes Cornus sensu lato (in the broad sense) as one genus. Four ancient evolutionary lineages are displayed conspicuously as major clades within it: the Big-Bracted Dogwoods Clade (Benthamidia), the Dwarf Dogwoods Clade: Bunchberries (Arctocrania), the Cornelian-cherry Clade (Macrocarpium), and the Blue and White-Fruited Dogwoods Clade (Swida). These contain seven formal subgenera: Yinquania, Mesomora, Thelycrania, Cornus, Arctocrania, Cynoxylon, and Syncarpea. This ranked framework is supplemented by modern phylogenetic clade names where they add useful information (Du et al. 2023; Deasy et al. 2026).

One evolutionary tree, several naming systems

The competing classifications are easier to understand when their names are translated rather than treated as contradictory taxonomies.

Tree TSAR group Tree TSAR treatment Common segregate-genus treatment What the difference means
Big-Bracted Dogwoods Clade Cornus, containing Subgenera Cynoxylon and Syncarpea Benthamidia s.l.; some systems additionally recognize Dendrobenthamia or other segregates Tree TSAR retains both major big-bracted lineages within Cornus while showing their internal separation explicitly
Dwarf Dogwoods Clade: Bunchberries Cornus Subgenus Arctocrania Chamaepericlymenum or other historical segregates The bunchberries are treated as an ancient subgenus rather than as a separate genus
Cornelian-cherry Clade Cornus Subgenus Cornus Cornus s.s. or Macrocarpium in some historical treatments This lineage contains the nomenclatural type of Cornus and therefore retains the generic name when the genus is fragmented
Blue and White-Fruited Dogwoods Clade Cornus, containing Subgenera Yinquania, Mesomora, and Thelycrania Swida s.l., sometimes with additional segregates The same blue- and white-fruited radiation is recognized, but Tree TSAR retains its three major lineages below genus rank

Many additional names encountered in floras, databases, horticultural literature, and older monographs refer to still smaller pieces of this hierarchy. Cynoxylon has been used for the American portion of the Big-Bracted Dogwoods Clade, Dendrobenthamia for parts of its principally Asian radiation, Bothrocaryum for the lineage represented by Subgenus Mesomora, and Kraniopsis and Thelycrania for overlapping historical concepts among the Blue and White-Fruited Dogwoods. Yinquania likewise appears at both generic and infrageneric ranks in different classifications. These names are valuable records of taxonomic history, but encountering them does not necessarily indicate a different interpretation of the evolutionary tree.

That history is important when interpreting modern proposals to split Cornus. Several of the most prominent segregate-generic names are not products of the molecular era at all: Chamaepericlymenum dates to 1756, Swida to 1838, and Benthamidia to 1839 (Royal Botanic Gardens, Kew 2026). Modern split treatments therefore generally use new phylogenetic evidence to restore historical names to generic rank rather than introducing genera newly discovered by phylogenomics. The distinction matters: modern evidence can vindicate the biological reality of an old lineage without demonstrating that its historical rank was uniquely correct. Du et al. (2024b) make this separation especially clear by converting numerous historical dogwood names into formally defined, rank-free clades within a broadly circumscribed Cornus.

The nomenclatural consequences can nevertheless be substantial. Eastern flowering dogwood may appear as either Cornus florida or Benthamidia florida. Pagoda dogwood may be encountered as Cornus alternifolia, Swida alternifolia, or Bothrocaryum alternifolium. Japanese kousa dogwood provides an especially striking example because some segregate treatments use Benthamidia japonica, so that neither word of the familiar name Cornus kousa survives even though the biological lineage being discussed is essentially the same. Tree TSAR follows current specialist treatments in continuing to use Cornus kousa within Subgenus Syncarpea (Deasy et al. 2026).

Why Tree TSAR retains Cornus sensu lato

Tree TSAR does not retain broad Cornus because its internal lineages are poorly differentiated. They are not. The big-bracted dogwoods, bunchberries, cornelian-cherry dogwoods, and blue- and white-fruited dogwoods differ conspicuously in habit, inflorescence architecture, floral display, fruit form and color, and reproductive biology. Genome-scale studies confirm that these differences correspond to ancient, strongly supported branches of dogwood evolution (Du et al. 2023).

The question is whether those differences require genus rank.

They do not uniquely do so. Broad Cornus is strongly monophyletic, but each of the four principal dogwood lineages is also monophyletic, as are major groups nested within them. The Big-Bracted Dogwoods Clade, for example, contains the well-supported Cynoxylon and Syncarpea lineages. The Blue and White-Fruited Dogwoods Clade contains Yinquania, Mesomora, and the large Thelycrania radiation. A phylogenetic tree therefore supplies many legitimate places at which a taxonomist could draw a genus boundary. Monophyly tells us which groups are natural; it does not specify which nested natural group must be called a genus.

This problem becomes especially clear when evolutionary age is used as an argument for splitting. The stems of the four main dogwood radiations extend deep into the Late Cretaceous or early Paleogene, but stem age is not the same as the age of the surviving crown. The Dwarf Dogwoods Clade has an extremely ancient stem age, yet diversification among the surviving bunchberries is much younger. Conversely, important divergences nested within the proposed genus Swida, including those associated with Yinquania, Mesomora, and Thelycrania, extend far back into the Paleogene. A temporal rule sufficiently permissive to require four dogwood genera therefore begins to make still smaller dogwood clades plausible generic candidates. There is no unique geological-age boundary that naturally produces exactly four genera (Du et al. 2023).

The same reasoning applies to morphological diagnosability. Morphology answers the important question, “Can this evolutionary lineage be recognized?” It does not independently answer, “Must it be recognized as a genus?” Tree TSAR answers the first question emphatically in the affirmative and preserves those distinctions through subgenera and named clades.

Broad Cornus also possesses a strong overarching morphological and anatomical identity of its own; its recognition does not depend on molecular monophyly alone. Current phylogenetic nomenclature diagnoses the crown clade by a remarkably consistent character suite: simple, entire leaves with arcuate venation and characteristic two-armed hairs; predominantly opposite phyllotaxy; four-merous flowers with distinct, reflexed petals and minute sepals; usually terminal inflorescences; and drupaceous fruits derived from an inferior, usually two-carpellate ovary (Du et al. 2024b). The exceptions are limited and phylogenetically localized rather than random: Subgenus Mesomora has alternate leaves, C. chinensis may bear lateral inflorescences, and C. oblonga can develop three- or four-carpellate ovaries. Long before genome-scale data were available, Murrell’s (1993) cladistic analysis of 28 morphological, anatomical, chemical, and cytological characters likewise identified three characters as uniting Cornus: a dorsal raphe, two or more locules per fruit, and calcium-carbonate ornamentation of the trichomes. Species of Cornus s.l. also bear some of the most distinctive and recognizable foliage among temperate woody plants; even a beginner can readily perceive the shared architecture of such superficially different species as C. florida and C. racemosa.

The often-cited contrast in involucral bracts is particularly instructive because the usual shorthand of bracts being either present or absent is itself biologically imprecise. Murrell (1993) found inflorescence bracts in all examined members of the traditional Kraniopsis and Mesomora groups, although they may be minute and fall before anthesis. Within the Big-Bracted Dogwoods Clade, C. disciflora develops four involucral bracts that protect the inflorescence bud but are shed before they expand and become petaloid. Nuclear and RAD-seq analyses recover C. disciflora as sister to C. florida, not to the more superficially similar Pacific flowering dogwood, C. nuttallii; Du et al. (2024a) accordingly concluded that earlier classifications had overemphasized the early-deciduous bracts of C. disciflora. Thus, bract size, persistence, expansion, and petaloidy are highly informative clade-level characters, but they are evolutionarily labile even within a single subgenus and do not furnish an objective boundary for dividing the genus.

Genomic evidence adds an independent layer to this morphological cohesion: transcriptome analyses detected an ancient whole-genome duplication best placed on the stem leading to Cornus, before the rapid diversification of its major surviving branches (Yu et al. 2017). The broad genus is therefore not merely a container constructed for nomenclatural convenience. It represents a shared structural and genomic inheritance followed by unusually deep internal diversification.

Does splitting reveal more phylogeny?

A common intuition is that recognizing more genera must reveal more evolutionary information. In Cornus, it does not.

Calling the Blue and White-Fruited Dogwoods Clade Swida identifies one important clade, but it does not by itself tell the reader about the deep separation of Yinquania, Mesomora, and Thelycrania. Calling the Big-Bracted Dogwoods Clade Benthamidia likewise does not show the Cynoxylon–Syncarpea division unless that genus is subdivided again. Tree TSAR instead retains Cornus as the unifying genus and displays each of those ancient internal lineages explicitly. The result is not “one genus instead of phylogeny.” It is a hierarchy:

Cornus → major evolutionary clade → formal subgenus → species and species complex.

That hierarchy communicates at least as much evolutionary structure as the four-genus treatment, while avoiding the implication that one selected depth in a continuously nested phylogeny represents a uniquely biological genus boundary.

This distinction is particularly relevant because Du et al. (2023) used a rank-free PhyloCode framework to name numerous strongly supported clades within the dogwood radiation. Those clade names preserve phylogenetic information without requiring every named node to be transformed into a Linnaean genus. Subsequent genome-scale and specialist studies have continued to refer to groups such as Benthamidia as clades of Cornus, rather than treating recognition of the clade as equivalent to generic rank (Sun et al. 2025; Deasy et al. 2026).

Stability as a consequence, not the premise

Nomenclatural stability alone is not a biological argument, and Tree TSAR does not retain Cornus simply because familiar names are familiar. If broad Cornus were unnatural, preserving familiar combinations would not justify it.

Stability becomes relevant because broad and narrow treatments are both phylogenetically permissible. Once the biological information can be represented fully within Cornus, the additional explanatory gain from replacing dozens of familiar combinations must be weighed against the resulting disruption in floras, databases, horticulture, conservation records, herbaria, citizen-science observations, and public communication.

That cost is already visible in North America, where some regional resources use Benthamidia florida, Swida sericea, or Chamaepericlymenum canadense while national, international, horticultural, and many specialist sources continue to use Cornus florida, C. sericea, and C. canadensis. A classification intended to make plant relationships intelligible should not create such changes unless they communicate biological information that cannot be represented effectively within the established genus.

Separating Cornus s.l. fails this test.

That does not make the segregate treatment scientifically invalid. It is a defensible rank convention. However Tree TSAR simply reaches a different rank decision from the same nested phylogeny and recognizes that there is an element of ethics that arises when considering changes to a large number of iconic, familiar species that will lead to mass confusion and potential downstream effects on science, education, and conservation.

Cornus in the APG V era

Under the APG V framework, Cornus and Alangium are placed together in a broad Cornaceae; Tree TSAR instead follows the most recent specialist literature in recognizing Alangiaceae as the sister family of a narrower Cornaceae containing Cornus alone.

That family-level departure does not control the genus-rank decision. Whether Alangium is treated as the second genus of Cornaceae or as the sole genus of Alangiaceae, Cornus remains the same strongly supported crown lineage. Tree TSAR therefore evaluates the limits of Cornus independently, using the evolutionary coherence and internal structure of the dogwoods themselves. Interestingly, Alangium also demonstrates deep, ancient internal divergences not unlike *Cornus. *

The combination of narrow Cornaceae and a broad-sense Cornus is also represented in recent specialist phylogenomics. Du et al. (2023) recognized Alangiaceae separately while retaining the entire dogwood crown as Cornus, demonstrating that ancient evolutionary divergence need not be translated mechanically into the same Linnaean rank at every level.

Morphology, distribution, and evolutionary diversity

Most dogwoods are woody trees or shrubs. They range from low suckering thickets to substantial forest trees and include deciduous and evergreen species. The principal exception is Subgenus Arctocrania, comprising the Dwarf Dogwoods Clade: Bunchberries, whose members are perennial subshrubs arising from persistent woody rhizomes. Their low stature can make them appear herbaceous, but the woody rhizomatous framework links them structurally to the broader dogwood radiation.

Leaves are simple and usually opposite, although pagoda dogwood (C. alternifolia) and giant dogwood (C. controversa) provide conspicuous alternate-leaved exceptions. The true flowers are generally small, but dogwoods have evolved several ways of increasing floral display. Most members of the Big-Bracted Dogwoods Clade bear conspicuous involucral bracts around compact groups of small flowers. Members of the Cornelian-cherry Clade flower in dense umbels, often before leaf emergence. Many members of the Blue and White-Fruited Dogwoods Clade instead produce broad cymose clusters of exposed white flowers. Fruits are drupes or, in some members of Subgenus Syncarpea, compound structures formed from closely associated fruits. Mature colors range from white and blue through red, purple, and almost black.

This morphological variety accompanies a long history of Northern Hemisphere migration, extinction, isolation, and secondary contact. Fossils and molecular dating indicate that major dogwood lineages were established early, while later climatic change repeatedly reorganized their distributions. Some modern disjunctions, particularly those between eastern Asia and eastern North America, preserve the imprint of formerly broader northern floras (Xiang et al. 2005; Du et al. 2023).

Reticulation remains important at shallower levels. Natural hybrids occur within several major clades, and genomic work on the bunchberries has revealed repeated hybridization, introgression, and ploidy change rather than a simple branching history (Sun et al. 2025). Such complexity reinforces the usefulness of retaining hierarchical names at several levels instead of expecting genus rank alone to carry the full evolutionary story.

Horticultural and Agricultural Uses

Dogwoods are among the most diverse ornamental genera of temperate horticulture. Eastern flowering dogwood (Cornus florida), Japanese kousa dogwood (C. kousa), and Pacific flowering dogwood (C. nuttallii) are prominent members of the Big-Bracted Dogwoods Clade and are grown for conspicuous floral bracts, elegant branching, autumn color, and ornamental fruits. Extensive cultivar development has produced selections differing in bract color, flowering time, habit, foliage, and disease response. Interspecific breeding within this clade has also produced important ornamental hybrids and cultivar groups.

Other dogwoods are valued for entirely different traits. Siberian dogwood (C. alba), red-osier dogwood (C. sericea), and related species are grown for colorful young stems, especially in winter; regular renewal pruning is often used to encourage vigorous shoots with the strongest bark color. Pagoda dogwood and giant dogwood are valued for tiered architecture that emerges from a sympodial branching habit, while several Asian dogwoods are cultivated for ornamental bark.

The Cornelian-cherry Clade combines ornamental and food value. European cornelian-cherry dogwood (Cornus mas) produces edible red drupes that have long been used fresh or processed into preserves, syrups, beverages, and other foods in parts of Europe and western Asia. Japanese cornelian-cherry dogwood (C. officinalis) has a long history of medicinal cultivation in East Asia. These uses reflect the unusually large fruits found within Subgenus Cornus rather than a general feature of all dogwoods. Subgenus Syncarpea is also known for its relatively large, edible fruits.

Cultivation requirements vary substantially across the genus. Moisture-loving species of the Blue and White-Fruited Dogwoods Clade tolerate soils that would be unsuitable for many members of the Big-Bracted Dogwoods Clade, while several of the latter perform best in well-drained, organic soils with moderated summer heat. The ecological breadth of Cornus is therefore one of its horticultural strengths: the genus supplies plants for woodland gardens, wet sites, shrub borders, specimen-tree planting, edible landscapes, winter-stem displays, and specialist collections.

Conservation Issues

Conservation risk is unevenly distributed across Cornus. Several widespread species remain abundant over enormous ranges, while others are restricted to small regions, montane systems, isolated subtropical forests, or poorly surveyed parts of Asia, Africa, and the Americas. For narrowly distributed taxa, habitat loss and incomplete knowledge of population structure can be more important than the global status of the genus as a whole.

Disease has had an exceptional impact on some North American dogwoods. Dogwood anthracnose, caused by Discula destructiva, produced extensive decline and mortality in wild populations of eastern flowering dogwood and Pacific flowering dogwood after appearing in North America in the late twentieth century. Disease severity varies with habitat and climate, and the outbreak demonstrated how widespread and familiar ornamental species can still experience major ecological disruption in native forests (Daughtrey et al. 1996).

Genetic structure also matters increasingly to dogwood conservation. Recent work has uncovered cryptic lineages, reticulation, and geographically structured genomic diversity within groups that were once treated as comparatively simple species. The bunchberries provide a particularly clear example: conserving a broadly named species without documenting provenance, cytotype, and genomic lineage can fail to preserve the evolutionary diversity hidden inside that name (Sun et al. 2025).

For ex situ collections, provenance should therefore be retained whenever possible. Living collections that document locality, population, and taxonomic interpretation can serve simultaneously as conservation resources and as material for resolving difficult species complexes. This is especially valuable in poorly sampled Asian dogwoods where nomenclature, morphology, and genome-scale relationships do not yet align perfectly.

Infrageneric Groups

Tree TSAR recognizes four principal phylogenetic lineages and seven formal subgenera within Cornus.

The Big-Bracted Dogwoods Clade contains Subgenus Cynoxylon, centered on the American lineage that includes eastern flowering dogwood, and Subgenus Syncarpea, containing the principally Asian big-bracted dogwoods.

The Dwarf Dogwoods Clade: Bunchberries corresponds to Subgenus Arctocrania, a distinctive rhizomatous subshrub radiation with a long stem history and comparatively young surviving crown.

The Cornelian-cherry Clade corresponds to Subgenus Cornus. Because Cornus mas is associated with the nomenclatural type of the genus, this is the lineage that retains Cornus in classifications that fragment the broader genus.

The Blue and White-Fruited Dogwoods Clade, the largest radiation, contains Subgenus Yinquania, Subgenus Mesomora, and Subgenus Thelycrania. It encompasses most of the blue- and white-fruited dogwoods and includes both alternate- and opposite-leaved lineages.

These four clades and seven subgenera allow Tree TSAR to represent the deepest well-supported divisions of the genus without converting every major branch into a separate genus.

Accepted Taxa
Cornus alba L. Siberian dogwood
Cornus alpina W.P.Fang & W.K.Hu Mountain dogwood
Cornus alternifolia L.f. Pagoda dogwood
Cornus amomum Mill. Silky dogwood
Cornus × arnoldiana Rehder Arnold dogwood
Cornus asperifolia Michx. Eastern roughleaf dogwood
Cornus austrosinensis W.P.Fang & W.K.Hu South Chinese dogwood
Cornus bretschneideri L.Henry Bretschneider dogwood
Cornus californica C.A.Mey. Creek dogwood
Cornus canadensis L. Canadian bunchberry dogwood
Cornus canadensis ssp. pristina Gervais & Blondeau Subarctic bunchberry dogwood
Cornus capitata Wall. Himalayan evergreen dogwood
Cornus chinensis Wangerin Chinese cornelian-cherry dogwood
Cornus controversa Hemsl. Giant dogwood
Cornus coreana Wangerin Korean dogwood
Cornus darvasica (Pojark.) Pilip. Darvoz dogwood
Cornus disciflora DC. Button dogwood
Cornus drummondii C.A.Mey. Midwestern roughleaf dogwood
Cornus × dubia Rehder Rehder dogwood
Cornus × dunbarii Rehder Dunbar dogwood
Cornus × elwinortonii Mattera, T.Molnar & Struwe Orton flowering dogwood
Cornus excelsa Kunth Mexican dogwood
Cornus eydeana Q.Y.Xiang & Y.M.Shui Yunnan cornelian-cherry dogwood
Cornus florida L. Eastern flowering dogwood
Cornus florida ssp. urbiniana (Rose) Rickett Magic dogwood
Cornus foemina Mill. Swamp dogwood
Cornus × friedlanderi W.H.Wagner Friedlander dogwood
Cornus glabrata Benth. Brown dogwood
Cornus × haddenii J.Aldridge & S.Andrews Hadden flowering dogwood
Cornus hemsleyi C.K.Schneid. & Wangerin Soap dogwood
Cornus hongkongensis Hemsl. Hong Kong evergreen dogwood
Cornus hongkongensis ssp. angustata [Chun] TSAR* Chinese evergreen dogwood
Cornus hongkongensis ssp. elegans (W.P.Fang & Y.T.Hsieh) Q.Y.Xiang Showy evergreen dogwood
Cornus hongkongensis ssp. ferruginea (H.Hara) Q.Y.Xiang Rusty evergreen dogwood
Cornus hongkongensis ssp. gigantea (Hand.-Mazz.) Q.Y.Xiang Large-flower Hong Kong dogwood
Cornus hongkongensis ssp. melanotricha (Pojark.) Q.Y.Xiang Tufted Hong Kong dogwood
Cornus hongkongensis ssp. tonkinensis (W.P.Fang) Q.Y.Xiang Vietnamese evergreen dogwood
Cornus × horseyi Rehder Rochester dogwood
Cornus iberica Woronow Caucasian dogwood
Cornus koehneana Wangerin Sichuan-Shaanxi dogwood
Cornus kousa Bürger ex Hance Japanese kousa dogwood
Cornus kousa ssp. chinensis (Osborn) Q.Y.Xiang Chinese kousa dogwood
Cornus × lepagei Gervais & Blondeau Labrador bunchberry dogwood
Cornus macrophylla Wall. Bigleaf dogwood
Cornus macrophylla var. stracheyi C.B.Clarke Strachey dogwood
Cornus mas L. European cornelian-cherry dogwood
Cornus meyeri (Pojark.) Pilip. Azeri dogwood
Cornus multinervosa (Pojark.) Q.Y.Xiang Sichuan flowering dogwood
Cornus nuttallii Audubon Pacific flowering dogwood
Cornus obliqua Raf. Blue colonel dogwood
Cornus oblonga Wall. Indian dogwood
Cornus oblonga var. glabrescens W.P.Fang & W.K.Hu Smooth Indian dogwood
Cornus oblonga var. griffithii C.B.Clarke Saffron dogwood
Cornus officinalis Siebold & Zucc. Japanese cornelian-cherry dogwood
Cornus oligophlebia Merr. Laurel dogwood
Cornus orientalis Y.X.Sun, W.B.Zhou & Q.-Y.Xiang Northeast Asian bunchberry dogwood
Cornus papillosa W.P.Fang & W.K.Hu Nippleberry dogwood
Cornus parviflora S.S.Chien Smallflower dogwood
Cornus peruviana J.F.Macbr. Peruvian dogwood
Cornus poliophylla C.K.Schneid. & Wangerin Silver dogwood
Cornus quinquenervis Franch. Cinnamonleaf dogwood
Cornus racemosa Lam. Gray dogwood
Cornus rugosa Lam. Roundleaf dogwood
Cornus × rutgersensis Mattera, T.Molnar & Struwe Rutgers flowering dogwood
Cornus sanguinea L. European blood-twig dogwood
Cornus sanguinea nssp. czerniaewii Grosset Ukrainian blood-twig dogwood
Cornus sanguinea ssp. australis (C.A.Mey.) Jáv. Black Sea blood-twig dogwood
Cornus sanguinea ssp. cilicica (Wangerin) D.F.Chamb. Turkish blood-twig dogwood
Cornus sanguinea var. koenigii [C.K.Schneid.] TSAR* Georgian blood-twig dogwood
Cornus scabrida Franch. Kangding dogwood
Cornus sericea L. Red-osier dogwood
Cornus sessilis Torr. Blackfruit cornelian-cherry dogwood
Cornus × slavinii Rehder Slavin dogwood
Cornus sp. “04-C33” Guizhou evergreen dogwood
Cornus suecica L. Eurasian bunchberry dogwood
Cornus sunhangii T.Deng, Z.Y.Lv & Zhi M.Li Tibetan evergreen dogwood
Cornus × transamericana J.Aldridge & S.Andrews Wonder dogwood
Cornus ulotricha C.K.Schneid. & Wangerin Curly dogwood
Cornus unalaschkensis Ledeb. Western bunchberry dogwood
Cornus unalaschkensis ssp. borealis [Y.X.Sun, W.B.Zhou & Q.-Y.Xiang] TSAR* Yukon bunchberry dogwood
Cornus volkensii Harms African cornelian-cherry dogwood
Cornus walteri Wangerin Walter dogwood
Cornus wardiana Rushforth & Wahlsteen Burmese bunchberry dogwood
Cornus wilsoniana Wangerin Ghost dogwood
Cornus ‘Pumila’ Redtip dogwood

Additional Information

Useful external resources include iNaturalist for occurrence and observation data; Trees and Shrubs Online for the 2026 dendrological revision of Cornus and extensive synonymy, horticultural, and species information; Plants of the World Online for Kew’s current global backbone and distribution data; Flora of North America for North American dogwoods; Flora of China for Chinese and East Asian taxa; and the International Plant Names Index for nomenclatural records. Regional resources that employ segregate genera remain useful, but their names should be translated against the broad-Cornus framework when comparing records.

References and Further Reading

Daughtrey ML, Hibben CR, Britton KO, Windham MT, Redlin SC (1996) Dogwood anthracnose: understanding a disease new to North America. Plant Disease 80(4): 349–358. DOI: 10.1094/PD-80-0349.

Deasy M, Crowley D, Aldridge J, Chişu R (2026) Cornus L. Trees and Shrubs Online. Royal Botanic Gardens, Kew and International Dendrology Society.

Du Z-Y, Xiang Q-Y, Cheng J, Zhou W, Wang Q-F, Soltis DE, Soltis PS (2023) An updated phylogeny, biogeography, and PhyloCode-based classification of Cornaceae based on three sets of genomic data. American Journal of Botany 110(2): e16116. DOI: 10.1002/ajb2.16116.

Du Z-Y, Cheng J, Xiang Q-Y (2024a) RAD-seq data provide new insights into biogeography, diversity anomaly, and species delimitation in eastern Asian–North American disjunct clade Benthamidia of Cornus (Cornaceae). Journal of Systematics and Evolution 62(1): 1–19. DOI: 10.1111/jse.13037.

Du Z-Y, Xiang Q-Y, Soltis PS, Soltis DE (2024b) Addition to “An updated phylogeny, biogeography, and PhyloCode-based classification of Cornaceae based on three sets of genomic data”. Bulletin of Phylogenetic Nomenclature 1(3): 83–92. DOI: 10.11646/bpn.1.3.3.

Murrell ZE (1993) Phylogenetic relationships in Cornus (Cornaceae). Systematic Botany 18(3): 469–495. DOI: 10.2307/2419420.

Sun Y, Zhou W, Xiang Q-Y (2025) Genomic data uncover complex hybridization and evolutionary history of the bunchberry species complex (Cornus L., Cornaceae). Horticulture Research 12(5): uhaf026. DOI: 10.1093/hr/uhaf026.

Xiang Q-Y, Manchester SR, Thomas DT, Zhang W, Fan C (2005) Phylogeny, biogeography, and molecular dating of cornelian cherries (Cornus, Cornaceae): tracking Tertiary plant migration. Evolution 59(8): 1685–1700. DOI: 10.1111/j.0014-3820.2005.tb01818.x.

Yu Y, Xiang Q-Y, Manos PS, Soltis DE, Soltis PS, Song B-H, Cheng S, Liu X, Wong GK-S (2017) Whole-genome duplication and molecular evolution in Cornus L. (Cornaceae): insights from transcriptome sequences. PLOS ONE 12(2): e0171361. DOI: 10.1371/journal.pone.0171361.

Royal Botanic Gardens, Kew (2026) Cornus L. Plants of the World Online.