Jepson eFlora: Taxon page
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Picea sitchensis
SITKA SPRUCE

Higher Taxonomy
Family: PinaceaeView DescriptionDichotomous Key

Common Name: PINE FAMILY
Habit: Shrub, tree, evergreen; monoecious. Stem: young crown conic; twig not grooved, resinous, generally persistent. Leaf: simple, generally alternate, sometimes in bundles or appearing +- 2-ranked, linear or awl-like; base decurrent, woody or not, persistent several years. Pollen Cone: generally < 6 cm, not woody, deciduous. Seed Cone: generally woody; bracts, scales generally persistent; scale not peltate, fused to or free from subtending bract. Seed: 2, on scale base adaxially.
Genera In Family: 10 genera, 193 species: generally northern hemisphere; many of great commercial value, supplying > 1/2 of world's timber.
eFlora Treatment Author: J. Robert Haller, Nancy J. Vivrette, & James R. Griffin, except as noted
Scientific Editor: Thomas J. Rosatti, Bruce G. Baldwin.
Genus: PiceaView DescriptionDichotomous Key

Common Name: SPRUCE
Stem: crown conic; young branches appearing whorled, drooping or not; bark thin, scaly; twig with persistent, peg-like, spreading, < 2 mm leaf bases, glabrous or hairy; bud conic to ovoid, resinous. Leaf: often crowded toward upper side of twigs, generally < 3 cm, sessile, +- 4-angled or flat, stiff, often strong-smelling when crushed. Seed Cone: conspicuously terminal or not, pendent, 5--12 cm, maturing 1st year; stalk 0--1 cm; bract included, +- free from scale. Seed: wing terminal. Chromosomes: 2n=24.
Species In Genus: 34 species: northern hemisphere. Etymology: (Latin: pitch) Note: Trunks, especially of Picea sitchensis, more flared or buttressed at base than other California conifers.

Picea sitchensis (Bong.) Carrière
NATIVE
Stem: trunk < 66 m, < 5.1 m wide; branches +- drooping; twig glabrous. Leaf: 1--3 cm, rigid; adaxially +- flat, with 2 faint, +- white bands, abaxially rounded, darker green, with 2 faint, +- white bands or not; tip acute, sharp to touch. Seed Cone: < 10 cm, oblong; scale +- papery, margin +- jagged; bract > 1/2 scale.
Ecology: Moist soils, especially near coastal river mouths; Elevation: < 450 m. Bioregional Distribution: NCo; Distribution Outside California: to Alaska.
eFlora Treatment Author: J. Robert Haller, Nancy J. Vivrette, & James R. Griffin
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Citation for this treatment: J. Robert Haller, Nancy J. Vivrette, & James R. Griffin 2016. Picea sitchensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38188, accessed on August 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on August 29, 2016.


Picea sitchensis
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© 2016 Steve Matson
Picea sitchensis
click for enlargement
© 2016 Steve Matson
Picea sitchensis
click for enlargement
© 2013 California Academy of Sciences
Picea sitchensis
click for enlargement
© 2016 Steve Matson
Picea sitchensis
click for enlargement
© 2016 Steve Matson
Picea sitchensis
click for enlargement
© 2016 Steve Matson

More photos of Picea sitchensis in CalPhotos


Geographic subdivisions for Picea sitchensis:
NCo;
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.
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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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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.