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.
Common Name: PINE Stem: young crown conic, mature often rounded or flat; branches +- whorled in young plants; young bark smooth, mature furrowed; bud +- conic, generally resinous. Leaf: generally 2.5--35 cm, generally sessile, in bundles of (1)2--5; bundles 1 in axils of alternate, awl-like bracts, base in a sometimes deciduous, scaly sheath of bracts, generally persistent several years. Seed Cone: often whorled, generally maturing, opening 2nd year, persistent on stem or not; stalk 0 or < 16 cm; bract included, fused to scale at least basally, minute; scale tip reflexed, elongated 3--7 cm or often with a rounded or angled, often prickled knob < 3 cm. Seed: coat hard, woody or not. Chromosomes: 2n=24. Etymology: (Latin: pine) Note:Pinus pinea L., stone pine (leaves 2 per bundle, 10--30 cm; seed cone 8--15 cm, maturing in 3 years) cultivated in Europe for over 6000 years for edible seeds (pine nuts), reportedly naturalized in SnFrB, northern ChI. Unabridged Note: Morphological, genetic study of relationships among Pinus jeffreyi, Pinus ponderosa, and Pinus washoensis indicates that the taxa should be classified as 2 species, Pinus jeffreyi and Pinus ponderosa, and that the latter comprises three varieties: Pinus ponderosa var. pacifica (new taxon), Pinus ponderosa var. ponderosa, and Pinus ponderosa var. washoensis (new combination). eFlora Treatment Author: J. Robert Haller & Nancy J. Vivrette Unabridged Reference: Millar & Critchfield 1988 Madroño 35:39--53
Pinus jeffreyi Grev. & Balf.
NATIVE Stem: trunk < 53 m, < 2.3 m wide; mature bark generally red-brown, furrows close-spaced, deep, outer scales with +- pink inner surfaces, crevices with definite odor of vanilla/banana, especially on warm days; mature crown rounded; buds not resinous, scales light brown, white-hairy. Leaf: 3 per bundle, 12--27 cm, thick, gray-blue-green, glaucous; sheath persistent. Seed Cone: spreading or recurved, generally 13--25 cm, ovate to +- oblong, brown, when immature light green to red-purple; stalk < 3 cm, persistent with proximal scales; scales generally not darker abaxially than adaxially, in open cone +- crowded, tips recurved, elongated < 3 cm; knob prickles incurved; bracts with white fringing hairs. Ecology: Upper mixed-conifer, red-fir forests, elsewhere on serpentine; Elevation: 450--3100 m. Bioregional Distribution: KR, NCoR, CaR, SN, SCoRI, TR, PR, GB; Distribution Outside California: southwestern Oregon, western Nevada, northern Baja California. Jepson eFlora Author: J. Robert Haller & Nancy J. Vivrette Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Pinus flexilis Next taxon: Pinus lambertiana
Citation for this treatment: J. Robert Haller & Nancy J. Vivrette 2012, Pinus jeffreyi, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=38279, accessed on April 16, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.
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(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
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