Jepson eFlora: Taxon page
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Cornus canadensis

Higher Taxonomy
Family: CornaceaeView Description 

Habit: Perennial herb to tree; sometimes dioecious. Leaf: generally opposite, simple, generally entire, generally deciduous, veins often arched; stipules 0. Inflorescence: cyme or raceme, generally umbel- or head-like, subtended by showy or +- non-showy bracts or open, not subtended by bracts. Flower: generally small, generally bisexual; calyx generally 4-lobed; petals [0]4[(5)], free; stamens generally as many as, alternate petals; ovary inferior, chambers 1--4, 1-ovuled, style simple, stigma lobes 0[2--4]. Fruit: drupe [berry]. Seed: generally 1--2.
Genera In Family: +- 12 genera, +- 100 species: especially northern temperate (also southern tropics, subtrop); cultivated as ornamental (Cornus, Aucuba); some timber species.
eFlora Treatment Author: James R. Shevock
Scientific Editor: Thomas J. Rosatti.
Genus: CornusView DescriptionDichotomous Key

Common Name: DOGWOOD
Leaf: generally opposite or whorled; base, tip generally tapered. Inflorescence: head-like cyme subtended by showy bracts, open cyme not subtended by bracts, or umbel subtended by non-showy bracts. Fruit: stone 1--2-chambered.
Species In Genus: +- 50 species: northern temperate, rare southern hemisphere; many cultivated as ornamental, some for fall color; some fruit used for jam, syrup. Etymology: (Latin: horn, from the hard wood) Note: Divided by some into 6 or more genera.
Reference: Murrell 1993 Syst Bot 18:469--495

Cornus canadensis L.
Habit: Perennial herb, rhizomed. Stem: < 2 dm, generally with 4--6 whorled leaves below inflorescence, pair near mid-stem. Leaf: 2.5--7 cm, elliptic to obovate, glabrous to strigose. Inflorescence: head-like, 1, 2--4 cm, slender; bracts 4, 0.8--1.6 cm, ovate, showy, +- white, persistent. Flower: sepals 0.4 mm; petals 1.5 mm, +- yellow or +- purple; style 1.5--2 mm. Fruit: +- 8 mm, spheric, red; stone smooth.
Ecology: Moist forest, bogs; Elevation: 1100 m. Bioregional Distribution: NW; Distribution Outside California: to Alaska, eastern North America; northeastern Asia. Flowering Time: May--Jul
eFlora Treatment Author: James R. Shevock
Reference: Murrell 1993 Syst Bot 18:469--495
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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Next taxon: Cornus glabrata

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botanical illustration including Cornus canadensis


Citation for this treatment: James R. Shevock 2012, Cornus canadensis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on February 25, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on February 25, 2018.

Cornus canadensis
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© 2016 Keir Morse
Cornus canadensis
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© 2014 Barry Rice
Cornus canadensis
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© 2001 California Academy of Sciences
Cornus canadensis
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© 2013 California Academy of Sciences
Cornus canadensis
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© 2016 Keir Morse
Cornus canadensis
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© 2011 Vernon Smith

More photos of Cornus canadensis in CalPhotos

Geographic subdivisions for Cornus canadensis:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.