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Siberian Fir

Abies sibirica Ledeb.

Comments

provided by eFloras
Only var. sibirica, described here, occurs in China; var. semenovii (B. Fedtschenko) Farjon (A. semenovii B. Fedtschenko) occurs in Kyrgyzstan and differs as follows: branchlets prominently ridged and grooved; resin canals marginal; seed cones yellowish brown; bracts broader.

A vulnerable species in China. The timber is used for construction, furniture, and wood pulp.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 4: 48 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Description

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Trees to 35 m tall; trunk to 1 m d.b.h.; bark gray brown, smooth; branchlets yellowish gray, shining; winter buds globose, resinous. Leaves ascending, rarely pectinately arranged in 2 lateral sets, light green adaxially, linear, flattened, (1.5-)2-3 (-4) cm × ca. 1.5 mm, stomatal lines in 2 white bands abaxially, resin canals 2, median, apex emarginate, acute or obtuse on cone-bearing branchlets. Seed cones brown or dark brown at maturity, cylindric, 5-9.5 × 2.5-3.5 cm. Seed scales at middle of cones obtriangular-flabellate or flabellate-trapeziform, usually slightly contracted at middle, 1.7-2.5 × 1.6-2.4 cm, exposed part densely pubescent abaxially, base pedicellate. Bracts cuneate-obovate, short, 1/3-1/2 as long as seed scales, distal margin erose-denticulate, apex slightly rounded. Seeds slightly appressed, obtriangular, ca. 7 mm; wing light blue distally, cuneate, 0.7-1.3 cm. Pollination May, seed maturity Oct-Nov.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 4: 48 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

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NE Xinjiang [Kazakhstan, Mongolia, N Russia]
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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 China Vol. 4: 48 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Habitat

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Mountains, river basins; 1900-2400 m.
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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 China Vol. 4: 48 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Abies sibirica

provided by wikipedia EN

Abies sibirica, the Siberian fir, is a coniferous evergreen tree native to the taiga east of the Volga River and south of 67°40' North latitude in Siberia through Turkestan, northeast Xinjiang, Mongolia and Heilongjiang.

Distribution

The tree lives in the cold boreal climate on moist soils in mountains or river basins at elevations of 1900–2400 m. It is very shade-tolerant, frost-resistant, and hardy, surviving temperatures down to −50 °C. It rarely lives over 200 years due to the susceptibility to fungal decay in the wood.

Description

Siberian fir, Abies sibirica, grows 30–35 m tall with a trunk diameter of 0.5–1 m at breast height and a conical crown. The bark is grey-green to grey-brown and smooth with resin blisters typical of most firs. Shoots are yellow-grey, resinous, and slightly pubescent. The leaves are needle-like, 2–3 cm long and 1.5 mm broad on average. They are light green above with two grey-white stomatal bands underneath, and are directed upwards along the stem. They are soft, flattened, and strongly aromatic. The cones are cylindrical, 5–9.5 cm long and 2.5–3.5 cm broad, with small bracts hidden by the scales. They ripen from bluish to brown or dark brown in mid-autumn. The seeds, 7 mm long with a triangular wing 0.7–1.3 cm long, are released when the cone disintegrates after maturity.

Varieties

There are two varieties:

  • Abies sibirica var. sibirica. Described above.
  • Abies sibirica var. semenovii (B. Fedtschenko) Farjon. Endemic in Kyrgyzstan. Branchlets noticeably ridged and grooved. Resin canals marginal. Cones yellow-brown, with broader bracts than those of var. sibirica.

Ecology

Abies sibirica is subject to infection from the fungus Delphinella balsameae which was reported from Russia for the first time in 2003.[2]

Uses

Essential oils extracted from the leaves are used in aromatherapy and perfumes. The wood is soft, lightweight, and weak. It is used in construction, furniture, and wood pulp.

References

  1. ^ Katsuki, T.; Rushforth, K. & Zhang, D. (2011). "Abies sibirica". The IUCN Red List of Threatened Species. IUCN. 2011: e.T42299A10681312. doi:10.2305/IUCN.UK.2011-2.RLTS.T42299A10681312.en. Retrieved 10 January 2018.
  2. ^ Morozova, T. I.; Vasilyeva, L. N. (2003). "Ascomycetous fungi of Siberia. I. Delphinella balsameae - the causal agent of the shoot blight of Siberian fir" (PDF). Mikologiya i Fitopatologiya (in Russian). 37 (1): 59–61. ISSN 0026-3648.

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Abies sibirica: Brief Summary

provided by wikipedia EN

Abies sibirica, the Siberian fir, is a coniferous evergreen tree native to the taiga east of the Volga River and south of 67°40' North latitude in Siberia through Turkestan, northeast Xinjiang, Mongolia and Heilongjiang.

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