Directory       News       Site Map       Home
         
    Jepson eFlora
Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

PICEA 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.
2n=24.
34 species: northern hemisphere. (Latin: pitch) Trunks, especially of Picea sitchensis, more flared or buttressed at base than other California conifers.

Key to Picea

1. Leaf ± 4-angled, with 2 obvious, ± white bands adaxially, abaxially ..... P. engelmannii

1' Leaf ± flat, generally with 2 faint, ± white bands adaxially, also abaxially or not

2. Leaf tip blunt; seed cone scale margin ± entire, bract < 1/4 scale ..... P. breweriana

2' Leaf tip acute; seed cone scale margin ± jagged, bract > 1/2 scale ..... P. sitchensis

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.