Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.



Jim A. Bartel

Shrub, tree, evergreen, monoecious or dioecious
Leaves cauline, opposite and 4-ranked or whorled in 3's and 6-ranked, generally scale-like, decurrent, completely covering young stems
Pollen cone small, axillary or terminal
Seed cone ± fleshy to woody, generally hard at maturity; scales opposite or whorled
Seeds 1–many per scale, generally angled or winged, generally wind-dispersed
Genera in family: 17 genera, ± 120 species: worldwide; all North America genera cultivated
Reference: [Elias 1980 Complete Trees North America]
Juvenile leaves needle- or awl-like, sometimes present in ± mature plants, especially in response to grazing or infection, especially in Cupressus, Juniperus.



Large shrub, tree, often pyramidal in youth, monoecious
Stem: young shoots generally cylindric (sometimes 4-angled or flat), generally arrayed in 3-dimensional clusters
Leaves opposite, 4-ranked, scale-like, closely appressed, overlapping
Pollen cone generally yellow
Seed cone 6–50 mm, woody, ± spheric to widely cylindric, maturing 1st or 2nd year, often closed > 2 years; scales 6–12, peltate, abutting, shield- or wedge-shaped; projection often present, small, pointed, generally less visible in age
Seeds 2–many per scale, flat, winged; cotyledons 2–5
Chromosomes: 2n=22 for all reports
Species in genus: ± 22 species: w North America, Eurasia
Etymology: (Latin: cypress)
Reference: [Wolf 1948 Aliso 1:1–250]


C. arizonica Greene

Tree 5–25 m
Stem: bark partially peeling in thin strips or plates to fibrous (especially in age), smooth to furrowed, cherry-red to brown to gray; youngest shoots 1–2 mm diam, 4-sided
Leaf dusty gray-green, glaucous or not, appearing blue-green, glandular, often resin-covered
Pollen cone 2–5 mm, 2 mm diam, ± cylindric to 4-sided; scales 8–16; pollen sacs 3–6 per scale
Seed cone 10–35 mm, spheric to ovoid, often warty, dull gray to brown; scales 4–8, projection 0–4 mm
Seed 3–8 mm, light tan to dark brown, slightly warty, often glaucous; attachment scar conspicuous or not
Ecology: Pinyon/juniper or oak/pine woodland, chaparral
Elevation: 750–1800 m.
Bioregional distribution: s Sierra Nevada (Kern, Tulare cos.), Peninsular Ranges
Distribution outside California: Arizona, n Baja California, n&c Mexico


subsp. arizonica


Tree 10–16 m
Stem: bark smooth, thin, peeling in thin strips or plates, cherry-red
Leaf: glands generally inactive, sometimes inconspicuous or 0
Pollen cone: pollen sacs 3–6 per scale
Seed cone 10–25 mm, spheric, dull gray to brown; scale projection 2–4 mm, often conspicuous, conic
Seed 4–8 mm, dark brown, generally not glaucous
Chromosomes: 2n=22(23,24)
Ecology: Chaparral
Elevation: 900–1200 m.
Bioregional distribution: Peninsular Ranges (Cuyamaca Mtns)
Distribution outside California: Arizona, n Baja California, n&c Mexico
Synonyms: var. glabra (Sudw.) Little; var. revealiana J. Silba; C. stephensonii C. Wolf
Widely planted as windbreak.

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bioregional map for CUPRESSUS%20arizonica%20subsp.%20arizonica 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 Cupressus arizonica subsp. arizonica
Retrieve dichotomous key for Cupressus
Retrieve multiple-entry key (MEKA) for Cupressus
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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