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Cupressus arizonica Greene
ARIZONA CYPRESS
Life   Plantae   Gymnospermae   Cupressaceae   Cupressus

Cupressus arizonica
© Copyright Jennie Allison 2011 · -1
Cupressus arizonica

Click on map for details about points.

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Associates · map
FamilyScientific name @ source (records)
Botryosphaeriaceae  Macrophoma cupressi @ BPI (1)
Diaporthaceae  Phomopsis juniperovora @ BPI (6)
Gloeophyllaceae  Gloeophyllum sepiarium @ BPI (1)
Mycosphaerellaceae  Cercospora thujina @ BPI (1)
Polyporaceae  Poria subacida @ BPI (2)

Poria tenuis @ BPI (1)

Poria @ BPI (2)

Trametes sepium @ BPI (2)
Pucciniaceae  Gymnosporangium cupressi @ BPI (5)
Sclerotiniaceae  Botrytis cinerea @ BPI (1)
Stereaceae  Aleurodiscus lividocoeruleus @ BPI (2)
_  Uredo cupressicola @ BPI (1)

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Trunk and branches of a tree in Chiricahua National Monument, Arizona [Jeff Bisbee].

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Crown of a tree near Los Lirios, Coahuila [Jeff Bisbee, 2014.09].

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Foliage and mature cones on a tree near Los Lirios, Coahuila [Jeff Bisbee, 2014.09].

 

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Conservation status

Cupressus arizonica

Greene 1882

Common names

Arizona or roughbark Arizona cypress ( Peattie 1950 ), ciprés ( Elmore & Janish 1976 ).

Taxonomic notes

Synonymy:

In the past, there has been considerable debate about the actual extent of this species (see the "Taxonomic notes" section of Cupressus for a discussion of the relationship between this and other, closely related Cupressus taxa in northwest Mexico and the adjacent Southwest U.S.). Little ( 1966 , 1970 ) assigned Cupressus arizonica , C. glabra , C. montana , C. nevadensis and C. stephensonii status as varieties of C. arizonica , and Eckenwalder (1993) ) did not even recognize the varieties, although all were again recognized in the comprehensive morphological analysis of Farjon (2005) . However, each of these taxa has been described as a distinct species, having different distributions and consistent differences in morphology, chemistry, and molecular genetic characters ( Wolf 1948 , Little 1966 , 1970 , Silba 1981 , Bartel et al. 2003, Little et al. 2004 , Farjon 2005 , Little 2006 , Adams et al. 2010). Certain authors have noted that the morphological differences between the species are for the most part related to their differing ecological settings (e.g., more waxy cuticles in the more desert-adapted groups, serotinous cones in populations experiencing frequent fire). However, the differences include certain cone characters, which are conventionally interpreted as taxonomically significant in the Cupressaceae; and the molecular genetic differences ( Little et al. 2004 , Little 2006 ) have no apparent relationship to ecological variability. It is thus appropriate to treat them as distinct taxa. They are here treated as species.

Description

"[T]ree up to 25 m high; bark gray to black-brown, furrowed; branches horizontally spreading; crown broadly conical; shoots short, thick, four-sided, spreading in all directions; foliage scale-like, mostly 2 mm long, acuminate, usually glaucous-green; resin gland on the dorsal side of the leaf not conspicuous or only slightly so; cones shortly petiolated, globose, 2-3 cm large, dark red-brown, bluish pruinose, composed of 6 to 8 scales with prominent dorsal processes; seeds 4-5 mm long, dark brown, occasionally bluish pruinose, cca 90-120 to a cone; cotyledons 4-5" ( Vidakovic 1991 ).

Distribution and Ecology

USA: Texas, New Mexico, SE Arizona; Mexico: Chihuahua, Coahuila, Durango, Tamaulipas, Zacatecas; at 1000 to 1500 m in the US, and up to 2200 m in Mexico ( Vidakovic 1991 , Farjon 1998 ). Bartel (1993) identifies it as occurring from Big Bend in Texas, northwest to Greenlee County and the Santa Catalina Mountains in Arizona, with Cupressus glabra occurring in still more northwestern portions of Arizona. Adams (2008) places it in the 4-corners area of Coahuila-Chihuahua-New Mexico-Arizona and northwest from there through central Arizona to the Prescott area. Hardy to Zone 7 (cold hardiness limit between -17.7°C and -12.2°C) ( Bannister and Neuner 2001 ).

Data from USGS (1999) . Points plotted as tree icons represent isolated or approximate locations.

Big tree

Height 28 m, dbh 194 cm, crown spread 15 m, in the Santa Catalina Mountains of AZ ( American Forests 2000 ).

Oldest

Dendrochronology

Has been used in one ecological study (Parker 1980), but no other applications are recorded.

Ethnobotany

Observations

Can be seen at several points along the Mt. Lemmon Highway, Santa Catalina Mountains, Arizona; most notably, in Seven Cataracts Canyon.

Remarks

Citations

Adams, R.P., J.A. Bartel, D. Thornburg, and A. Allgood. 2010. Geographic variation in the leaf essential oils of Hesperocyparis arizonica and H. glabra . Phytologia 92(3):366-387. Available at www.phytologia.org .

Bartel, J.A. 1993. Cupressaceae: Cypress family. Journal of the Arizona-Nevada Academy of Science 27:195-200.

Bartel, J.A., R.P. Adams, S.A. James, L.E. Mumba and R.N. Pandey. 2003. Variation among Cupressus species from the western hemisphere based on Random Amplified Polymorphic DNAs (RAPDs). Biochem. Syst. Ecol. 31:693-702.

Greene, E.L. 1882. New western plants. Bulletin of the Torrey Botanical Club 9(5): 64-65. http://www.cupressus.net/CUarizonicaGreene.html , courtesy of the Cupressus Conservation Project website.

Parker, A.J. 1980. The successional status of Cupressus arizonica. Great Basin Naturalist 40(3): 254-264.

See also

Adams, R.P. and J.A. Bartel. 2009. Geographic variation in Hesperocyparis ( Cupressus ) arizonica and H. glabra : RAPDs analysis. Phytologia 91(1):244-250.

Bisbee, Jeff. 2006. Photos at the Cupressus Conservation Project website.

Farjon (2005) provides a detailed account, with illustrations.

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1. Cupressus arizonica Greene, Bull. Torrey Bot. Club. 9: 64. 1882.

Arizona cypress, Arizona smooth cypress, Cuyamaca cypress, Piute cypress, cedro, cedro blanco, ciprés de Arizona

Cupressus arizonica var. glabra (Sudworth) Little; C . arizonica var. nevadensis (Abrams) Little; C . arizonica var. stephensonii (C. B. Wolf) Little; C . glabra Sudworth; C . nevadensis Abrams; C . stephensonii C. B. Wolf

Trees to 23 m, shrubby where subject to fires; crown conic at first, broadly columnar with age, dense. Bark smooth at first, remaining so or becoming rough, furrowed, fibrous. Branchlets decussate, 1.3--2.3 mm diam. Leaves usually with conspicuous, pitlike, abaxial gland that produces drop of resin, often highly glaucous. Pollen cones 2--5 ´ 2 mm; pollen sacs mostly 4--6. Seed cones globose or oblong, mostly 2--3 cm, gray or brown, often glaucous at first; scales mostly 3--4 pairs, smooth or with scattered resin blisters, sometimes with erect conic umbos to 4 mm, especially on apical scales. Seeds mostly 4--6 mm, light tan to dark brown, not glaucous to heavily glaucous. 2 n = 22.

Canyon bottoms, pinyon-juniper woodland, chaparral; 750--2000 m; Ariz., Calif., N.Mex., Tex.; Mexico.

Bark texture and foliage features have been used to distinguish geographic varieties or segregate species. Although bark texture may be consistent within populations, over the species as a whole there is complete intergradation between smooth and fibrous barks. Various forms are commonly cultivated and sometimes persistent in the southern United States.

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Updated: 2017-11-19 11:02:59 gmt
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