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Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
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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

JUNIPERUS JUNIPER

Robert P. Adams & Jim A. Bartel

Shrub, tree; generally dioecious. Stem: bark thin, peeling in strips; young shoots 4-angled to cylindric. Leaf: opposite (4-ranked) or whorled in 3s (6-ranked), scale-like to less often awl- or needle-like. Pollen cone: generally terminal; pollen sacs 2–6 per scale. Seed cone: generally terminal, 5–18 mm, ± spheric, ± fleshy, berry-like, glaucous or not, dry or resinous, generally maturing 2nd year, surrounded at base by minute scale-like bracts; scales 3–8, fused, opposite or whorled in 3s. Seed: 1–3 per cone, ± flat, unwinged, often not angled, generally animal-dispersed over 2 years; cotyledons 2–6.
67 species, 28 var.: northern hemisphere except northeastern Africa. (Latin: juniper) [Adams & Nguyen 2007 Phytologia 89:43–57; Adams et al. 2006 Phytologia 88:299–309]
Unabridged references: [Adams 2004 Junipers of the World: The genus Juniperus. Trafford Publ., Vancouver]

Key to Juniperus

J. communis L. COMMON JUNIPER
NATIVE
Shrub < 1 m, generally ± prostrate; generally dioecious. Stem: bark brown, peeling in papery sheets. Leaf: generally whorled in 3s, 6-ranked; suberect to spreading, awl- or needle-like, jointed, not decurrent. Pollen cone: axillary, 4–5 mm. Seed cone: axillary, 5–9 mm, green maturing bright blue to black, glaucous, resinous. Seed: 2–5 mm, ovoid, acute, generally 3-angled. 3 other varieties extend sp. range to include Europe, Asia. [Online Interchange]

J. communis var. saxatilis Pall. MOUNTAIN JUNIPER
NATIVE
Spreading, mat-like, occasionally erect. Leaf: 5–10(12) mm; glaucous stomatal band 2 × as wide as green leaf margin. Seed cone: mature spheric. Seed: 1–3 per cone.
Rocky areas; 600–2400 m. Klamath Ranges, High Sierra Nevada, Warner Mountains; to Yukon Territory, Europe, Asia. [Juniperus communis var. montana Aiton, in part] [Online Interchange]

Previous taxon: Juniperus communis var. jackii
Next taxon: Juniperus grandis

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 23 2014
Citation for this treatment: [Author of taxon treatment] 2013. Juniperus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=60424, accessed on Jul 23 2014

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