Difference between revisions of "Juniperus osteosperma"
Leafl. W. Bot. 5: 125. 1948.
Common names: Utah juniper sabina morena
Basionym: Juniperus tetragona var. osteosperma Torrey
Synonyms: Juniperus californica var. utahensis EngelmannSabina osteosperma (Torrey) AntoineSabina utahensis (Engelmann) Rydberg
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees monoecious, to 6(–12) m, multi- or single-stemmed; crown rounded. <b>Bark</b> exfoliating in thin gray-brown strips, that of smaller and larger branchlets smooth. <b>Branches</b> spreading to ascending; branchlets erect, 3–4-sided in cross section, about as wide as length of scalelike leaves. <b>Leaves</b> light yellow-green, abaxial glands inconspicuous and embedded, exudate absent, margins denticulate (at 20×); whip leaves 3–5 mm, glaucous adaxially; scalelike leaves 1–2 mm, not overlapping, or, if so, by less than 1/10 their length, keeled, apex rounded, acute or occasionally obtuse, appressed. <b>Seed</b> cones maturing in 1–2 years, of 1–2 sizes, with straight peduncles, globose, (6–)8–9(–12) mm, bluish brown, often almost tan beneath glaucous coating, fibrous, with 1(–2) seeds. <b>Seeds</b> 4–5 mm.</span><!-- |
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|genus=Juniperus | |genus=Juniperus | ||
|section=Juniperus sect. Sabina | |section=Juniperus sect. Sabina | ||
|species=Juniperus osteosperma | |species=Juniperus osteosperma | ||
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Revision as of 13:11, 27 July 2019
Shrubs or trees monoecious, to 6(–12) m, multi- or single-stemmed; crown rounded. Bark exfoliating in thin gray-brown strips, that of smaller and larger branchlets smooth. Branches spreading to ascending; branchlets erect, 3–4-sided in cross section, about as wide as length of scalelike leaves. Leaves light yellow-green, abaxial glands inconspicuous and embedded, exudate absent, margins denticulate (at 20×); whip leaves 3–5 mm, glaucous adaxially; scalelike leaves 1–2 mm, not overlapping, or, if so, by less than 1/10 their length, keeled, apex rounded, acute or occasionally obtuse, appressed. Seed cones maturing in 1–2 years, of 1–2 sizes, with straight peduncles, globose, (6–)8–9(–12) mm, bluish brown, often almost tan beneath glaucous coating, fibrous, with 1(–2) seeds. Seeds 4–5 mm.
Habitat: Dry, rocky soil and slopes
Elevation: 1300–2600 m
Distribution
Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Utah, Wyo.
Discussion
Juniperus osteosperma is the dominant juniper of Utah. It is reported to hybridize with J. occidentalis in northwestern Nevada (F. C. Vasek 1966).
Selected References
None.
Lower Taxa
None.