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Vascular Plants of California
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Vaccinium uliginosum subsp. occidentale
WESTERN BLUEBERRY


Higher Taxonomy
Family: EricaceaeView DescriptionDichotomous Key
Common Name: HEATH FAMILY
Habit: Perennial herb, shrub, tree. Stem: bark often peeling distinctively. Leaf: simple or 0, generally cauline, alternate, opposite (whorled), evergreen or deciduous, often leathery, petioled or not; stipules 0. Inflorescence: raceme, panicle, cyme, or flowers 1, terminal or axillary, generally bracted; pedicel often with 2 bractlets. Flower: generally bisexual, generally radial, bell-shaped, cylindric, or urn-shaped; sepals generally (0)4--5, generally free; petals generally (0)4--5, free or fused; stamens (2--5)8--10, free, filaments rarely appendaged, anthers dehiscing by pores or slits, awns 0 or 2(4), seemingly abaxial, reduced or elongate, generally curved; nectary generally present at ovary base, generally disk-like; ovary superior or inferior, chambers generally 1--5, placentas axile or parietal, ovules 1--many per chamber, style 1, stigma head- to funnel-like or lobed. Fruit: capsule, drupe, berry. Seed: generally many, winged or not.
Genera In Family: +- 100 genera, 3000 species: generally worldwide except deserts; some cultivated, especially Arbutus, Arctostaphylos, Rhododendron, Vaccinium. Note: Monophyletic only if Empetraceae included, as treated here. Ledum included in Rhododendron. Non-green plants obtain nutrition from green plants through fungal intermediates.
eFlora Treatment Author: Gary D. Wallace, except as noted
Scientific Editor: Gary D. Wallace, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: VacciniumView DescriptionDichotomous Key


Common Name: BLUEBERRY, HUCKLEBERRY
Habit: Shrub, [tree] glabrous to hairy, rhizomed or not, burls generally 0. Stem: trailing to erect. Leaf: cauline, alternate. Inflorescence: raceme or flowers 1, bracted; bud scales present; bractlets generally 2. Flower: sepals 4--5, 2/3 to fully fused; corolla cylindric to urn- or cup-shaped, petals generally 4--5, +- 2/3 fused, generally white; stamens 8 or 10, filaments generally glabrous, anthers elongate, awned or not, dehiscing by pores on small tubes; ovary inferior, chambers 4--5, or appearing 10 by intrusion of ovary wall, placentas axile, stigma head-like. Fruit: berry. Seed: generally many.
Species In Genus: 400+ species: temperate northern hemisphere, tropical mountains, Africa. Etymology: (Latin: for Vaccinium myrtillus L.)
Unabridged Note: Vaccinium oxycoccos L. reported from California in FNANM; records lacking.
eFlora Treatment Author: Gary D. Wallace
Reference: Nelson & Lindstrand 2015 Madroño 62:167--180
Unabridged Reference: Vander Kloet 1988 The genus Vaccinium in N.Am.
Vaccinium uliginosum L. subsp. occidentale (A. Gray) Hultén
NATIVE
Habit: Shrub, glabrous, rhizomed or not. Stem: erect, < 6 dm, or prostrate, generally rooting; twigs not angled, not green. Leaf: deciduous, 1--2 cm, elliptic to ovate, +- thick, entire, glaucous or not, abaxially visibly but not prominently veined. Inflorescence: generally +- raceme, flowers 1--4 on leafless older shoots; pedicel not jointed to flower, bractlets 0. Flower: calyx lobes 4--5, generally > tube, triangular, persistent; anthers awned. Fruit: < 6 mm diam, blue-black, glaucous.
Ecology: Bogs, wet meadows; Elevation: < 3400 m. Bioregional Distribution: NCo, KR, NCoRH, CaR, SNH; Distribution Outside California: to British Columbia, Montana, Nevada. Flowering Time: Jun--Jul Note: Part of circumboreal complex needing study. Some NCo (Big Lagoon, Humboldt Co.) plants with prominently veined leaves, fruit > 6 mm diam may be Vaccinium uliginosum subsp. uliginosum, native to lowland northern Europe.
Synonyms: Vaccinium occidentale A. Gray
Jepson eFlora Author: Gary D. Wallace
Reference: Nelson & Lindstrand 2015 Madroño 62:167--180
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Botanical illustration including Vaccinium uliginosum subsp. occidentale

botanical illustration including Vaccinium uliginosum subsp. occidentale

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Citation for this treatment: Gary D. Wallace 2017, Vaccinium uliginosum subsp. occidentale, in Jepson Flora Project (eds.) Jepson eFlora, Revision 5, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=53312, accessed on December 05, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 05, 2019.

Vaccinium uliginosum subsp. occidentale
click for enlargement
© 2009 Barry Breckling
Vaccinium uliginosum subsp. occidentale
click for enlargement
© 2009 Barry Breckling

More photos of Vaccinium uliginosum subsp. occidentale in CalPhotos



Geographic subdivisions for Vaccinium uliginosum subsp. occidentale:
NCo, KR, NCoRH, CaR, SNH
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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 occurence).





 

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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.
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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.