Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

PINACEAE

PINE FAMILY

James R. Griffin

Tree or shrub, monoecious, evergreen
Stem: young crown conic; twig not grooved, resinous, generally persistent
Leaves simple, generally alternate, sometimes in bundles or appearing ± 2-ranked, linear or awl-like; bases decurrent, sometimes woody, 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
Seeds 2, on upper side of scale base
Genera in family: 10 genera, 193 species: mostly n hemisphere; many of great commercial value, supplying > half of world's timber
Reference: [Price 1989 J Arnold Arbor 70:247–305]

ABIES

FIR


Stem: young bark smooth, with resin blisters, mature bark generally thick, deeply furrowed; young branches appearing whorled; twig glabrous or hairy; leaf scars smooth, round, flush with surface; bud generally ± spheric, generally < 1 cm, ± resinous
Leaves 2–9 cm, sessile, twisted at base to become 2-ranked, often curved upward on upper twigs, generally ± flat; upper surface with 2 longitudinal, whitish bands, midrib sometimes depressed; lower surface with or without whitish bands, midrib sometimes ridge-like
Seed cone erect, < 23 cm, maturing 1st season; stalk generally 0; bracts, scales deciduous; bract included or exserted, free from scale; axis persistent on stem
Seed with obvious resin deposits on surface; wing < 2.5 cm
Chromosomes: 2n=24 for all reports
Species in genus: 39 species: n hemisphere
Etymology: (Latin: silver fir)
Reference: [Vasek 1985 Madroño 32:65–77]

Native

A. lasiocarpa (Hook.) Nutt. var. lasiocarpa

SUBALPINE FIR


Stem: trunk < 30 m, < 1.3 m wide; mature crown very narrow, steeple-like; bark gray, < 5 cm thick; twig hairy several seasons; bud resinous
Leaves < 3 cm, ± flat; lower surface with whitish bands; tip notched or blunt
Seed cone < 10 cm; bract included
Ecology: Subalpine forest, meadows
Elevation: 1700–2100 m.
Bioregional distribution: Klamath Ranges (w Siskiyou Co., 6 populations)
Distribution outside California: to nw Canada, in Rocky Mtns to New Mexico
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for ABIES%20lasiocarpa%20var.%20lasiocarpa being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Abies lasiocarpa var. lasiocarpa
Retrieve dichotomous key for Abies
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