Cornus sericea L. — Red-osier dogwood

Introduction

Red-osier dogwood is one of North America’s most widespread riparian shrubs, occurring from Atlantic Canada to Alaska and south through much of the western and northern United States into northeastern Mexico. It grows in wet meadows, fens, marshes, swamps, forest margins, and lake, river, and stream banks. Its red winter stems and white fruits are familiar both in the wild and in cultivation (Deasy et al. 2026).

The species belongs to Subgenus Thelycrania and is closely related to Eurasian C. alba. Their similarity led to repeated lumping, but phylogenomics supports a deep intercontinental separation and continued recognition as two species (Lindelof et al. 2020). Within North America, Tree TSAR also separates the western ridged-stone lineage as C. californica rather than treating it as a subspecies or synonym of C. sericea.

The species contains a large historical synonym cloud, including C. stolonifera, C. baileyi, C. interior, and C. instolonea. Tree TSAR recognizes none of these as accepted infraspecific taxa. It also excludes the supposed hybrid C. × acadiensis because the type material was redetermined as ordinary C. sericea.

Horticultural and Agricultural Uses

Red-osier dogwood is a major ornamental and restoration shrub. Young stems can be brilliant red, yellow, or green depending on cultivar, and hard pruning is often used to stimulate vigorous new shoots with the strongest winter color. Numerous selections also emphasize compact habit, variegated foliage, or autumn color (Deasy et al. 2026).

In ecological restoration, the species is widely used on streambanks, wetland margins, and disturbed moist ground because it roots readily, spreads vegetatively, and tolerates a broad range of cold climates. Its arching stems can root at nodes, reinforcing soil and allowing colonies to expand. That same vigor means siting and provenance should be deliberate rather than treating every nursery clone as interchangeable restoration stock.

Conservation Concerns

Cornus sericea is broadly secure; World Flora Online reports a Least Concern IUCN status, and the species occupies an enormous native range. Its global persistence is not presently a major concern.

Conservation value nevertheless exists at the population level. The species spans strong climatic and geographic gradients, and locally adapted provenance can matter in restoration. Outside its native range, particularly in parts of Europe, cultivated red-osier dogwood has also naturalized, so conservation planting should distinguish native-range restoration from ornamental introduction.

Additional Information

iNaturalist (opens in a new tab) - Direct species-level taxon page. iNaturalist currently recognizes a western infraspecific concept that differs from Tree TSAR’s acceptance of C. californica.
Trees and Shrubs Online (opens in a new tab) - Detailed taxonomy, nomenclatural history, ecology, and cultivars.
Plants of the World Online (opens in a new tab) - Accepted global backbone, range, and synonymy.
World Flora Online (opens in a new tab) - Global taxonomic record and IUCN status link.

References and Further Reading

Deasy M, Crowley D, Aldridge J, Chişu R (2026) Cornus sericea. Trees and Shrubs Online. Link (opens in a new tab)

Royal Botanic Gardens, Kew (2026) Cornus sericea L.. Plants of the World Online. Link (opens in a new tab)

Lindelof K, Lindo JA, Zhou W, Ji X, Xiang Q-Y (2020) Phylogenomics, biogeography, and evolution of the blue- or white-fruited dogwoods (Cornus) - Insights into morphological and ecological niche divergence following intercontinental geographic isolation. Journal of Systematics and Evolution 58(5): 604-645. Link (opens in a new tab)

Murrell ZE, Poindexter DB (2016) Cornaceae. In: Flora of North America Editorial Committee (eds) Flora of North America North of Mexico, vol. 12. Oxford University Press, New York and Oxford. Link (opens in a new tab)

World Flora Online (2026) Cornus sericea L. Link (opens in a new tab)