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

Previous taxon Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Previous taxon

CUPRESSACEAE CYPRESS FAMILY

Jim A. Bartel, except as noted

Shrub, tree, generally evergreen; monoecious or dioecious. Leaf: simple, cauline, alternate or opposite (either ± 4-ranked) or whorled in 3s (6-ranked), linear or scale-, awl- or needle-like (sometimes linear and awl-like on 1 plant, or on juvenile or injured plants), generally decurrent, covering young stems. Pollen cone: axillary or terminal. Seed cone: ± fleshy to generally woody, generally hard at maturity; scales opposite or whorled, peltate or not. Seed: 1–many per scale, angled or lateral winged, generally wind-dispersed.
n=11.
30 genera, 130+ species: ± worldwide, especially North America, Eurasia. [Farjon 2005 Monogr Cupressaceae Sciadopitys. RBG, Kew] Incl (paraphyletic) Taxodiaceae. Taxa of (polyphyletic) Cupressus in TJM (1993) now in Callitropsis, Chamaecyparis, Hesperocyparis. —Scientific Editor: Thomas J. Rosatti.

Key to Cupressaceae

THUJA ARBORVITAE
Stem: trunk generally flared at base; branches spreading to ± pendent, tips often upturned; young shoots 4-sided, in flat clusters, held horizontally. Leaf: opposite, 2-ranked, ± not appearing whorled in 4s, closely appressed, scale-like, exposed part ± as long as wide. Pollen cone: terminal. Seed cone: erect to reflexed, woody, ovoid-oblong, tapered to point, maturing 1st year; scales in 4–6 pairs, ± overlapping, sharp-pointed near tip, thin, oblong, acute, leathery, middle 2–3 pairs fertile. Seed: (1)2 per fertile scale, wings 2, ± equal; cotyledons 2.
5 species: northern North America, eastern Asia. (Greek: resinous tree)

T. plicata D. Don WESTERN RED CEDAR, CANOE CEDAR
NATIVE
Tree 30–70 m. Stem: bark 1–2 cm thick, cinnamon-red, fibrous; young shoot upper surface glossy dark green, lower surface generally faintly white-streaked. Pollen cone: red-brown turning dark gray. Seed cone: 10–19 mm, light brown. Seed: 4–6 mm, narrow, elliptic, light brown.
n=11. Coastal conifer forest; < 1800 m. North Coast, Klamath Ranges, Outer North Coast Ranges (Del Norte, Humboldt cos.); to Alaska, Montana. [Online Interchange]

Previous taxon: Thuja
Next taxon: Ephedraceae

Contact/Feedback

Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 17 2014
Citation for this treatment: [Author of taxon treatment] 2013. Thuja, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=46527, accessed on Sep 17 2014

Copyright © 2014 Regents of the University of California
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.


click for enlargement Thuja plicata
See CalPhotos for additional images
1995 Saint Mary's College of California

Geographic subdivisions indicated for the distribution of Thuja plicata Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

 

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.