General: Dogwood Family (Cornaceae). Redosier dogwood is a woody deciduous shrub generally 1.4-6 m (4.6-20 ft) tall. The bark and twigs are reddish to purple and fairly smooth from autumn to late spring; after the leaves have fallen, the deep burgundy branches add color to the winter landscape. The bark, twigs, and leaves are bright green in spring through summer. The simple, opposite leaves are 5-10 cm (2-4 in) long, dark green above and hairy and lighter-colored below, with smooth margins, rounded bases, pointed tips, and falsely parallel veins. Flowering occurs from June to August. The inflorescence is a cyme, with 2-3 mm (0.08-0.12 in) white to cream-colored flowers. The white berries are smooth on the faces, furrowed on the sides.
Red willow, redstem dogwood; Cornus stolonifera var. nevadensis Jepson and Cornus stolonifera Michaux (Hickman 1993). A related subspecies, Cornus sericia spp. occidentalis (Torr. & Gray) Fosberg is known as western dogwood.
Regularity: Regularly occurring
Regularity: Regularly occurring
For current distribution, please consult the Plant Profile page for this species on the PLANTS Web site. Redosier dogwood has a wide distribution from California north to Alaska and throughout the country to the eastern United States south to Mexico. It generally grows at elevations below 2500 m.
Habitat & Distribution
Lift a root with suckers on it without disturbing the parent plant. Check that there are fibrous roots at the base of the suckers.
Remove the suckering roots by cutting it off close to the parent plant. Firm the soil around the parent plant.
Cut the main root back to the fibrous roots, then divide the suckers so that each has its own roots. Cut back the top-growth by about half.
Treat each sucker or hardwood cutting at the base with IBA at 20,000 ppm liquid formulation to promote rooting. Alternatively, treatment with 2 percent IBA talc; this will promote rooting on both suckers and stem cuttings.
Replant the suckers in open ground in prepared holes with good potting soil. Firm the soil around the suckers and water.
Before growth starts in the spring, lift the plant. Break the clump into sections, retaining those with vigorous shoots and well-developed roots.
Prune any damaged roots, and cut back the top-growth by one-third to a half to reduce water loss. Replant the divisions in the open and water in dry weather.
Ultimately, simply lift a suckering root, sever it from the parent plant, and then replant it in the open.
In spring, plant a rooted layer or young plant, label it, and grow it for a season. Then, in the dormant season, cut back the stem to within 3 inches (8 cm) of the ground.
In the following spring, apply a balanced fertilizer at the rate of 2-4-oz/sq yd (60-110 g/sq m). Space the stems evenly again; dropping each into a 2-inch (5-cm) deep trench. Peg down each stem and cover with soil, leaving the shoot tips exposed. Hill up all but 2-3 inches (5-8 cm) of the new shoots as they develop, until the mound is 6 inches (15 cm) high. Water as needed.
After leaf fall, carefully fork away the soil from around the new shoots until the stems that were laid horizontally are exposed. Cut these flush with the basal area of the stems. Then cut the stems to separate the rooted sections. Pot these or plant them out in the open garden, and label them. The same redosier dogwood basal area may be used to propagate further layers.
Adaptation: Redosier dogwood grows in soils that are saturated for at least a portion of the growing season. Redosier dogwood is common on the edges of lakes, ponds, within wetlands, and along streams. Not as tolerant of long-term root saturation as are some other shrubs, dogwood seems to prefer wetland margins where soils are nitrogen-rich, saturated, and shallowly inundated in the spring, and may be completely dry by late summer. It is tolerant of fluctuating water tables. The “osier” in redosier dogwood is derived from French, meaning “willow-like”; it is often called red willow because of its red stems.
Propagation from cuttings: Redosier dogwood can be started easily by division, French layering, and hardwood cuttings. To propagate suckers by division:
To ensure survival of cuttings or suckers through the following winter in cold climates, the potted cuttings should be kept in heated cold frames or poly-houses to hold the temperature between 0-7°C (32-45°F). Rooted cuttings that had shoot growth in the fall, but were not given nitrogen, had the best over-winter survival in a cold frame with microfoam.
French layering: Layering is a method where a stem is encouraged to develop roots before being removed from the parent plant.
Propagation by seed: Redosier dogwood is established easily from seed. The best germination is obtained if the seeds are gathered as soon as the fruit starts to color or ripen, from August to October. If the seeds are allowed to dry out, it is best to remove seeds from the fruit and soak in water.
The best results are obtained from fall sowing of freshly harvested seeds. Fruits collected too late to sow in the fall should be stored, pre-chilled until the next season, and sown outdoors the following fall. To effectively condition the seed for germination, store for two months in moist sand at 5ºC for 90 days. After pre-chilling, expose the seeds to fluctuating temperatures from 12/72ºC for 10 days (Young and Young 1992). With some species, the warm stratification period may be replaced by mechanical scarification or soaking in sulfuric acid. Seeds sown in nursery beds should be covered with 0.25-0.5 in (0.6-1.25 cm) of soil. Fall-sown beds should be mulched during the winter.
Foodplant / saprobe
acervulus of Cheirospora coelomycetous anamorph of Cheirospora botryospora is saprobic on dead twig of Cornus alba
Remarks: season: 3-9
Other: minor host/prey
Foodplant / saprobe
covered, in groups of 3-5, eventually merging to become plurilocular stroma of Cytospora coelomycetous anamorph of Cytospora corni is saprobic on branch of Cornus alba
Foodplant / saprobe
more or less scattered, finally erumpent pycnidium of Phomopsis coelomycetous anamorph of Diaporthe corni is saprobic on dead, attached twig of Cornus alba
Remarks: season: 3-11
Foodplant / spot causer
few, epiphyllous pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta cornicola causes spots on live leaf of Cornus alba
Remarks: season: 8-10
Foodplant / saprobe
immersed pseudothecium of Pseudomassaria corni is saprobic on dead twig of Cornus alba
Molecular Biology and Genetics
Barcode data: Cornus alba
Statistics of barcoding coverage: Cornus alba
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
Barcode data: Cornus stolonifera
Statistics of barcoding coverage: Cornus stolonifera
Public Records: 3
Specimens with Barcodes: 18
Species With Barcodes: 1
National NatureServe Conservation Status
Rounded National Status Rank: N5 - Secure
Rounded National Status Rank: NNR - Unranked
NatureServe Conservation Status
Rounded Global Status Rank: T5 - Secure
Reasons: Many, generally moist habitats; common in cultivation, rare in portions of range.
Please consult the PLANTS Web site and your State Department of Natural Resources for this plant’s current status, such as, state noxious status and wetland indicator values.
Cultivars, improved and selected materials (and area of origin)
Cultivars: ‘Alman’s Compacta’, ‘Allamans’, ‘Bailey’, ‘Cardinal’, ‘Coloradensis’, ‘Flaviromea’, ‘Isanti’, ‘Kelseyi’, ‘Lutea’, ‘Ruby’, ‘Silver’ and ‘Gold’, and ‘White Gold’ have been planted in the growing range of redosier dogwood.
Consult your local nurseries to choose the right cultivar for your specific landscape.
Often basket weavers will prune many redosier dogwood stems, sometimes replanting the stems, so there will be nice straight basketry material the following year.
Before gathering, offerings of thanks and prayers for permission to gather are given. Often tobacco or sage or other offerings are given before beginning to gather.
Basket weavers process materials with their hands and mouths. Herbicides sprayed along streams have a much higher health risk for humans when they are processed and used for traditional materials.
Redosier dogwood is often coppiced in late fall after the leaves turn brown and fall off the stem. Cut all stems to approximately 2-3 in (5-8 cm) from the base before growth begins in spring. Apply fertilizer around the shrub to promote new growth, then apply mulch around the base. Coppicing stimulates the growth of new, vigorous stems whose deep burgundy color is especially vivid.
Traditional resource management: Redosier dogwood was traditionally tended by pruning or burning to produce long straight stems.
Overgrazing, especially by livestock and big game, frequently changes plant species composition and growth form, density of stands, vigor, seed production of plants, and insect production. Livestock grazing can cause the replacement of bird and mammal species requiring the vertical vegetation structure of riparian habitat to species, which are ubiquitous in their habitat preferences. Previous heavy cattle grazing changed the bird and small mammal community composition in riparian areas through reduction of shrub and herbaceous cover.
Relevance to Humans and Ecosystems
Ethnobotanic: Native Americans smoke the inner bark of redosier dogwood in tobacco mixtures used in the sacred pipe ceremony. Dream catchers, originating with the Potawotami, are made with the stems of the sacred redosier dogwood. Some tribes ate the white, sour berries, while others used the branches for arrow-making, stakes, or other tools. In California, peeled twigs were used as toothbrushes for their whitening effect on teeth (Strike 1994). Bows and arrows were made from Cornus shoots. The inner bark is used for tanning or drying animal hides.
The Apache, Cheyenne, Dakota, Montana Indians, Ojibwa, Potawatomi, Omaha, Ponca, and Thompson Indians all use the inner bark in a tobacco mixture for smoking the sacred pipe (Moerman 1986). The leaves and/or inner bark of redosier dogwood are also used as a smoking mixture by the Okanagan-Colville, the Flathead, the Kootenay, and the Blackfeet
peoples in the western United States and Canada (Hellson 1974, Hart 1976, Turner 1978, Turner et al. 1980, Johnston 1987). The Navaho-Kayentaf and Navaho-Ramah used the plant ceremonially as a Mountain-top-way emetic (Moerman 1986). An infusion of redosier dogwood bark was used as an anti-diarrheal by the Chippewa and the Potawatomi, an antidote for weak kidneys by the Shuswap, and a pediatric aid for children who wet the bed by the Shuswap. The Chippewa used an infusion of the bark for eruptions caused by poison ivy. The Chippewa and the Micmac used a decoction of redosier dogwood root for sore eyes and catarrh. The Okanagan and the Thompson Indians took a decoction of the leaves. Other remedies treated by redosier dogwood included headaches, sore throats, a wash for ulcers, a substitute for “larb”, and a decoction of bark was taken as an antidote for weakness.
The Maidu of Northern California used redosier dogwood as a tonic, a laxative, emetic, and cathartic (Strike 1994). Maidu women took a dogwood decoction after childbirth.
The fruits were eaten by the Indians of the Missouri region (Densmore 1974). The berries are known to be tart and bitter, but were nonetheless eaten by all of the southern Interior peoples of British Columbia, including the Nlaka’pamux, Lillooet, Okanagan-Colville, Shuswap, Kootenay, Blackfeet, and the Flathead of Alberta and Montana (Kuhnlein and Turner 1991). The fruits were gathered from August to October and eaten fresh, a few at a time, or, more commonly, were pounded and mixed with other fruits, such as chokecherries (Prunus virginiana) or Saskatoons (Amelanchier almifolia). Some people mashed the berries and dried them in cakes; others dried and stored them. Eating a few raw fruits was considered to be a good tonic among the Nlaka’pamux and the Okanagan-Colville, who ate them, raw as a kind of “relish” (Turner 1978; Turner et al. 1990).
Redosier dogwood is used for basket weaving. Sometimes called red willow, both Salix species and Cornus sericea are used interchangeably. Differences in stem color create a multi-hued design element. Indian people from the mid-Columbia River used redosier dogwood to make “ribbons” for basket decorations (Schlick 1994). If gathered in the early spring, the bark will retain its deep red color when dried and could be mistaken for cherry. The Hidatsa, Arikara, and Mandan made twill plaited burden baskets with two-toned dark and light designs; these baskets were made of willow (Salix nigra), redosier dogwood, and boxelder (Acer negundo) splints (Turnbaugh et al. 1986, Hart 1976). Willow and redosier dogwood were used by the Cheyenne, Arapaho, Kiowa, Pawnee, and Teton Sioux to make a coarsely coiled gambling basket for dice.
The Ojibwa and the Chippewa used redosier dogwood bark as a dye. The inner bark was mixed with other plants or minerals and used to make a red dye, a light red dye, a black dye, and an ecru or “khaki” colored dye (Densmore 1974).
Wildlife: The fleshy fruits of dogwoods are very valuable to wildlife, particularly in the Northeast (Martin et al. 1951). The fruit ripens in late summer, and besides being available through the fall, some of the berries may persist on the plants into the winter months. Wildlife browse the twigs, foliage, and fruits. Birds known to eat the fruit include: wood ducks, eastern bluebirds, cardinals, catbirds, long-tailed chats, crows, purple finches, yellow-shafted flickers, crested flycatchers, grosbeaks, kingbirds, American magpies, mockingbirds, crested mynah birds, orioles, robins, yellow-bellied sapsuckers, European starlings, tree swallows, scarlet tanagers, brown thrashers, thrushes, vireos, pine warblers, cedar waxwings, and woodpeckers. Game birds who eat both the fruits and buds include grouse, ring-necked pheasants, band-tailed pigeons, greater prairie chickens, bobwhite quail, and wild turkeys. The shrubs provide excellent nesting habitat for songbirds. Mammals that eat the fruit and foliage include black bear, beaver, mountain beaver, cottontail rabbits, raccoons, eastern skunks, squirrels, chipmunks, mice, and rats. Deer, elk, Mountain goat, and moose browse the twigs and foliage.
Landscaping & ornamental: Redosier dogwood is often planted as an ornamental, both to beautify the landscape and to attract birds. Dogwood is often used for landscaping and as a secondary plant in windbreaks.
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Cornus alba (red-barked, white or Siberian dogwood) is a species of flowering plant in the family Cornaceae, native to Siberia, northern China and Korea. It is a large surculose shrub that can be grown as a small tree. As a popular ornamental used in landscaping its notable features include the red stems in fall (autumn) through late winter, the brightest winter bark of any cornus; and the variegated foliage in some cultivars, such as C. alba 'elegantissima', in which the discreet flat whitish flower clusters are almost lost in the variegated texture and dappled light. C. alba can grow to 3 m (10 ft) high, but variegated forms are less vigorous. For the brightest winter bark, young shoots are encouraged by cutting to the ground some older stems at the end of the winter, before leaves are open.
The plant is extremely hardy, to USDA Zone 3.
- 'Aurea' (yellow leaves)
- 'Elegantissima' (deep red stems and small white flowers)
- 'Sibirica' (2.5 m (8 ft 2 in), brilliant red stems, cream flowers)
- 'Spaethii' (variegated leaves with yellow margins)
- Donald Wyman, Wyman's Garden Encyclopedia, s.v." Cornus alba 'Sibirica' ".
- "RHS Plant Selector - Cornus alba 'Aurea'". Retrieved 16 June 2013.
- "RHS Plant Selector - Cornus alba 'Elegantissima'". Retrieved 16 June 2013.
- "RHS Plant Selector - Cornus alba 'Sibirica'". Retrieved 16 June 2013.
- "RHS Plant Selector - Cornus alba 'Spaethii'". Retrieved 16 June 2013.
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