Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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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
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Abies lasiocarpa var. lasiocarpa
Retrieve dichotomous key for Abies
Retrieve multiple-entry key (MEKA) for Abies
Overlay Consortium of California Herbaria specimen data by county on this map
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