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Cornus sericea subsp. occidentalis


Higher Taxonomy
Family: CornaceaeView Description 
Common Name: DOGWOOD FAMILY
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.
Etymology: (Latin: horn, from the hard wood) Note: Divided by some into 6 or more genera.
Reference: Murrell 1993 Syst Bot 18:469--495; Wahlsteen et al. 2021 J Syst Evol 59: 405--416
Species: Cornus sericeaView Description 


Common Name: AMERICAN DOGWOOD
Habit: Shrub generally 1.5--4 m. Stem: branches +- red to purple, +- glabrous to minute-strigose, in age gray-green, generally glabrous. Leaf: blade generally 5--10 cm, lanceolate to ovate or elliptic, paler abaxially, veins 4--7 pairs. Inflorescence: cyme, strigose; bracts 0. Flower: petals 2--4.5 mm; style 1--3 mm. Fruit: 7--9 mm, white to cream; stone smooth or 3-ridged on faces, furrowed on sides.
Note: Highly variable complex with many local forms, treated broadly here. Subspecies intergrade widely.
Cornus sericea L. subsp. occidentalis (Torr. & A. Gray) Fosberg
NATIVE
Leaf: generally dense-rough-hairy abaxially. Flower: petals 3--4.5 mm; style 2.5--3 mm. Fruit: stone generally 3-ridged on faces.
Ecology: Generally moist places; Elevation: < 2500 m. Bioregional Distribution: CA-FP; Distribution Outside California: to Alaska, Montana. Flowering Time: May--Jul
Unabridged Synonyms: Cornus occidentalis (Torr. & A. Gray) Coville
Jepson eFlora Author: James R. Shevock
Reference: Murrell 1993 Syst Bot 18:469--495; Wahlsteen et al. 2021 J Syst Evol 59: 405--416
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: James R. Shevock 2012, Cornus sericea subsp. occidentalis, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=49997, accessed on December 03, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 03, 2024.

Cornus sericea subsp. occidentalis
click for image enlargement
©2016 Neal Kramer
Cornus sericea subsp. occidentalis
click for image enlargement
©2009 Barry Breckling
Cornus sericea subsp. occidentalis
click for image enlargement
©2016 Neal Kramer
Cornus sericea subsp. occidentalis
click for image enlargement
©2016 Neal Kramer
Cornus sericea subsp. occidentalis
click for image enlargement
©2016 Neal Kramer

More photos of Cornus sericea subsp. occidentalis
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Geographic subdivisions for Cornus sericea subsp. occidentalis:
CA-FP
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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 occurrence).






 

Data provided by the participants of the  Consortium of California Herbaria.

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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month Flowering-Fruiting Monthly Counts

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 (fruiting time in some monocot genera).