Jepson eFlora: Taxon page
Vascular Plants of California
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Sorbus californica
CALIFORNIA MOUNTAIN ASH


Higher Taxonomy
Family: RosaceaeView DescriptionDichotomous Key
Common Name: ROSE FAMILY
Habit: Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0--3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0--5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5--many, anther pollen sacs generally 2; pistils (0)1--many, simple or compound, ovary superior to inferior, styles 1--5. Fruit: 1--many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1--5 stones. Seed: generally 1--5 (per fruit, not per flower).
Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis.
eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera, treatment of genera by Daniel Potter, except as noted
Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Genus: SorbusView DescriptionDichotomous Key


Common Name: MOUNTAIN ASH
Habit: Shrub, tree. Leaf: odd-1-pinnately compound [not], petioled, deciduous; leaflets generally toothed, terminal partly fused to uppermost lateral(s) or not. Inflorescence: panicle, many-flowered; pedicel bractlets 0. Flower: hypanthium bractlets 0, stamens generally 20; ovary generally inferior, chambers 1--5, styles 1--5, generally free. Fruit: pome, generally spheric, chambers 1--5, 1--2-seeded.
Species In Genus: +- 130 species: northern temperate, tropical Asia. Etymology: (Latin: ancient name) Note: Species intergrade.
eFlora Treatment Author: Peter F. Zika
Unabridged Reference: Jones 1939 J Arnold Arbor 20:1--43
Sorbus californica Greene
NATIVE
Habit: Shrub 1--2(4) m; stem-buds 5--12 mm, shiny, sticky, hairs generally sparse, generally only on scale margins, tips, red-brown. Leaf: leaflets 7--9(11), 2--4 cm, 1--2 cm wide, oblong-ovate, shiny adaxially, axillary hairs red-brown. Inflorescence: pedicels +- glabrous in flower, fruit. Flower: petals 3--4 mm, widely ovate. Fruit: 6--9 mm, bright red, glaucous. Seed: 4 mm, lanceolate, barely flat, red-brown.
Ecology: Moist conifer forest; Elevation: 1200--4300 m. Bioregional Distribution: KR, NCoRH, CaR, SNH; Distribution Outside California: southern Oregon, western Nevada. Flowering Time: May--Jun Note: Intergrades with Sorbus scopulina.
Jepson eFlora Author: Peter F. Zika
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Botanical illustration including Sorbus californica

botanical illustration including Sorbus californica

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Citation for this treatment: Peter F. Zika 2012, Sorbus californica, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=44981, accessed on October 14, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 14, 2019.

Sorbus californica
click for enlargement
© 2003 Steve Matson
Sorbus californica
click for enlargement
© 2003 Steve Matson
Sorbus californica
click for enlargement
© 2003 Steve Matson
Sorbus californica
click for enlargement
© 2015 Steve Matson
Sorbus californica
click for enlargement
© 2015 Steve Matson
Sorbus californica
click for enlargement
© 2015 Steve Matson

More photos of Sorbus californica in CalPhotos



Geographic subdivisions for Sorbus californica:
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.