Jepson Interchange (more information)
| Jepson Flora Project: Jepson Interchange |
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TREATMENT FROM THE JEPSON MANUAL (1993) |
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Jepson Interchange (more information) |
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©Copyright 1993 by the Regents of the University of California
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AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
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.
Shrub, tree, generally dioecious
Stem: bark thin, peeling in strips; young shoots 4-angled to cylindric
Leaves opposite and 4-ranked or whorled in 3's and 6-ranked, scale-like to less often awl- or needle-like
Pollen cone: pollen sacs 2–6 per scale
Seed cone 5–18 mm, ± fleshy, berry-like, glaucous or not, dry or resinous, sweet, formed by fusion of scales, ± spheric, surrounded at base by minute scale-like bracts, generally maturing 2nd year; scales 3–8, opposite or whorled in 3's
Seeds 1–3(12) per cone, ± flat, unwinged, often not angled, generally animal-dispersed over 2 years; cotyledons 2–6
Species in genus: ± 60 species: n hemisphere
Etymology: (Latin: juniper)
Reference: [Vasek 1966 Brittonia 18:350–372]
| Native |
Shrub or tree 1–4(10) m, dioecious
Stem: trunks several at base; bark gray, thin, outer layers persistent
Leaves generally whorled in 3's, 6-ranked, closely appressed, scale-like; gland obvious
Pollen cone 2–3 mm, oblong
Seed cone 7–12 mm, spheric to ovoid, bluish maturing red-brown, dry
Seeds 1–3 per cone, 5–7 mm, pointed, angled, brown
Ecology: Dry slopes, flats, pinyon/juniper woodlands
Elevation: 50–1500 m.
Bioregional distribution: Inner North Coast Ranges, Sierra Nevada Foothills, San Francisco Bay Area, Inner South Coast Ranges, Transverse Ranges, Peninsular Ranges, Desert Mountains
Distribution outside California: s Nevada, nw Arizona, Baja California (Cedros, Guadalupe islands)Horticultural information: DRN: 3, 6, 7, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 &IRR: 8, 9, 11, 12.