Jepson eFlora: Taxon page
Vascular Plants of California
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Pinus contorta subsp. contorta
SHORE PINE


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.
Species: Pinus contortaView Description 


Stem: mature bark scaly, thin; trunk < 34 m (extremely variable at maturity). Leaf: 2 per bundle, 2.5--8.6 cm; sheath persistent. Seed Cone: pendent, 2--6 cm, brown; stalk +- 0; scale tip knobs angled, prickle < 6 mm.

Pinus contorta Loudon subsp. contorta
NATIVE
Stem: trunk generally < 15 m. Seed Cone: asymmetric, on stem many years after opening.
Ecology: Coastal dunes, bluffs lacking clay-, hardpan; Elevation: < 150 m. Bioregional Distribution: NCo; Distribution Outside California: to Alaska.
Jepson eFlora Author: J. Robert Haller & Nancy J. Vivrette
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Pinus contorta subsp. bolanderi
Next taxon: Pinus contorta subsp. murrayana

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Citation for this treatment: J. Robert Haller & Nancy J. Vivrette 2012, Pinus contorta subsp. contorta, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=75096, accessed on October 03, 2023.

Citation for the whole project: Jepson Flora Project (eds.) 2023, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on October 03, 2023.

Pinus contorta subsp. contorta
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© 2012 Vernon Smith
Pinus contorta subsp. contorta
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© 2016 Steve Matson
Pinus contorta subsp. contorta
click for enlargement
© 2016 Steve Matson
Pinus contorta subsp. contorta
click for enlargement
© 2012 Vernon Smith

More photos of Pinus contorta subsp. contorta in CalPhotos



Geographic subdivisions for Pinus contorta subsp. contorta:
NCo
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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).





 

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

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).