Difference between revisions of "Cupressus arizonica"
Bull. Torrey Bot. Club 9: 64. 1882.
Common names: Arizona cypress Arizona smooth cypress Cuyamaca cypress Piute cypress cedro cedro blanco ciprés de Arizona
Synonyms: Cupressus arizonica var. glabra (Sudworth) Little Cupressus arizonica var. nevadensis (Abrams) Little Cupressus arizonica var. stephensonii (C. B. Wolf) Little Cupressus glabra Cupressus nevadensis Cupressus stephensonii
Treatment appears in FNA Volume 2.
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|name=Cupressus arizonica var. stephensonii | |name=Cupressus arizonica var. stephensonii | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>to 23 m, shrubby where subject to fires; crown conic at first, broadly columnar with age, dense. <b>Bark</b> smooth at first, remaining so or becoming rough, furrowed, fibrous. <b>Branchlets</b> decussate, 1.3–2.3 mm diam. <b>Leaves</b> usually with conspicuous, pitlike, abaxial gland that produces drop of resin, often highly glaucous. <b>Pollen</b> cones 2–5 × 2 mm; pollen sacs mostly 4–6. <b>Seed</b> 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. <b>Seeds</b> mostly 4–6 mm, light tan to dark brown, not glaucous to heavily glaucous. <b>2n</b> = 22.</span><!-- |
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Latest revision as of 20:23, 5 November 2020
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. 2n = 22.
Habitat: Canyon bottoms, pinyon-juniper woodland, chaparral
Elevation: 750–2000 m
Distribution
Ariz., Calif., N.Mex., Tex., Mexico.
Discussion
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.
Selected References
None.
Lower Taxa
None.