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Baker Cypress

Cupressus bakeri Jeps.

Description

provided by eFloras
Trees to 30 m; crown broadly columnar, sparse. Bark smooth at first, later building up in layers. Branchlets decussate, 0.5--1.3 mm diam. Leaves with conspicuous, pitlike, abaxial gland that produces drop of resin, slightly glaucous. Pollen cones 2--3 ´ 2--2.5 mm; pollen sacs 3--5. Seed cones globose, mostly 1--2 cm, silvery, not glaucous; scales 3--4 pairs, usually covered with resin blisters, umbos often prominent, those of distal scales erect, to 4 mm. Seeds mostly 3--4 mm, light tan to medium brown, not glaucous to slightly glaucous.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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Distribution

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Calif., Oreg.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Habitat

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Mixed evergreen forests; of conservation concern; 1100--2000m.
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Synonym

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Cupressus bakeri Jepson subsp. matthewsii C. B. Wolf; C. macnabiana A. Murray bis var. bakeri (Jepson) Jepson
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Physical Description

provided by USDA PLANTS text
Tree, Evergreen, Monoecious, Habit erect, Trees without or rarely having knees, Primary plant stem smooth, Tree with bark smooth, Tree with bark rough or scaly, Tree with bark shaggy or peeling, Young shoots 3-dimensional, Buds not resinous, Leaves scale-like, Leaves opposite, Non-needle-like leaf margins entire, Leaf apex acute, Leaf apex obtuse, Leaves < 5 cm long, Leaves < 10 cm long, Leaves not blue-green, Outer leaf surface covered with resin, Scale leaves with raised glands, Scale leaf glands ruptured, Scale leaves overlapping, Twigs glabrous, Twigs not viscid, Twigs without peg-like projections or large fascicles after needles fall, Berry-like cones orange, Woody seed cones < 5 cm long, Bracts of seed cone included, Seeds tan, Seeds winged, Seeds equally winged, Seed wings narrower than body.
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cc-by-nc-sa-3.0
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Stephen C. Meyers
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Aaron Liston
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Steffi Ickert-Bond
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Damon Little
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USDA PLANTS text

Cupressus bakeri

provided by wikipedia EN

Cupressus bakeri, reclassified as Hesperocyparis bakeri,[2][4][5] with the common names Baker cypress, Modoc cypress, or Siskiyou cypress, is a rare species of cypress tree endemic to a small area across far northern California and extreme southwestern Oregon, in the western United States.

Description

Trunk of a young tree

The evergreen tree has a conic crown, growing to heights of 9–25 meters (30–82 ft),[6] exceptionally to 39 m (130 ft), and a trunk diameter of up to 50 centimeters (20 inches), exceptionally to 1 m (40 in). The bark is thin, red when young, and gray in maturity.[6]

The foliage grows in sparse, very fragrant, usually pendulous sprays, varying from dull gray-green to glaucous blue-green in color. The leaves are scale-like, 2–5 millimeters long, and produced on rounded (not flattened) shoots.[7]

The seed cones are globose to oblong, covered in warty resin glands, 10–25 mm (38–1 in) long, with 6 or 8 (rarely 4 or 10) scales, green to brown at first, maturing gray or gray-brown about 20–24 months after pollination. The male cones are 3–5 mm long, and release pollen in February–March.[8]

Distribution and habitat

The tree grows in limited populations in southwestern Oregon's Josephine and Jackson counties, and slightly more populously in a small section of Northern California within Siskiyou, Modoc, Shasta, Plumas and Tehama counties.[9] It is probably the northernmost cypress.[6]

It is usually found in small, scattered populations, not in large forests, at altitudes of 900–2,000 m (3,000–6,600 ft). This includes locales in the Modoc Plateau, southern Cascade Range, Klamath Mountains, and northern Sierra Nevada.[10] It is slow-growing in the wild, and is mostly restricted to sites difficult for plant growth, on serpentine soils and on old lava flows. Its tolerance of these sites enables it to avoid competition from much faster-growing trees. It is found in chaparral and yellow pine forest habitats.[5]

Ecology

The tree's thin bark makes it susceptible to wildfire, exposure to which is required to release the seeds; these then colonize the scorched earth left behind.[6] Fire suppression policies of the past decades have severely limited reproduction of the species. It is listed as a vulnerable species on the IUCN Red List.[11]

See also

References

  1. ^ Farjon, A. (2013). "Cupressus bakeri". IUCN Red List of Threatened Species. 2013: e.T34047A2841226. doi:10.2305/IUCN.UK.2013-1.RLTS.T34047A2841226.en. Retrieved 12 November 2021.
  2. ^ a b USDA: Hesperocyparis bakeri . accessed 8.28.2015.
  3. ^ The Plant List, Cupressus bakeri Jeps.
  4. ^ Jepson eFlora (JM2): Hesperocyparis bakeri . accessed 8.28.2015.
  5. ^ a b CalFlora Database: Hesperocyparis bakeri . accessed 8.28.2015.
  6. ^ a b c d Arno, Stephen F.; Hammerly, Ramona P. (2020) [1977]. Northwest Trees: Identifying & Understanding the Region's Native Trees (field guide ed.). Seattle: Mountaineers Books. pp. 180–181. ISBN 1-68051-329-X. OCLC 1141235469.
  7. ^ Pinetum Photos, trees
  8. ^ Pinetum Photos, cones
  9. ^ United States Department of Agriculture plants profile
  10. ^ Jepson Manual, University of California
  11. ^ Farjon, A. (2013). "Cupressus bakeri". IUCN Red List of Threatened Species. 2013: e.T34047A2841226. doi:10.2305/IUCN.UK.2013-1.RLTS.T34047A2841226.en. Retrieved 12 November 2021. – Listed as Vulnerable (VU B1+2bcd v2.3)

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wikipedia EN

Cupressus bakeri: Brief Summary

provided by wikipedia EN

Cupressus bakeri, reclassified as Hesperocyparis bakeri, with the common names Baker cypress, Modoc cypress, or Siskiyou cypress, is a rare species of cypress tree endemic to a small area across far northern California and extreme southwestern Oregon, in the western United States.

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Wikipedia authors and editors
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wikipedia EN