Overview

Distribution

Gansu, Nei Mongol (Daqing Shan), Ningxia, NE Qinghai (Qilian Shan, around Qinghai Hu)
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Physical Description

Morphology

Description

Trees to 25 m tall; trunk to 60 cm d.b.h. branchlets initially greenish yellow, turning pink or brownish yellow, rarely turning yellow in 2nd year or on drying, usually glaucous, pubescent or glabrous; winter buds conical, usually not resinous, scales usually reflexed, obviously keeled on dorsal sides at base of branchlets. Leaves spreading nearly radially, or ascending on upper side of branchlets, curved laterally on lower side, stout, broadly quadrangular in cross section, 1.2-3.5 cm × 2-3 mm, stomatal lines 5-7 along each surface adaxially and 4-6 along each surface abaxially, apex obtuse or mucronate. Seed cones cylindric, 7-11 × 2-3.5 cm. Seed scales at middle of cones obovate, slightly incurved, ca. 1.8 × 1.5 cm, margin entire or slightly undulate, apex rounded. Seeds obliquely obovoid, ca. 3.5 mm; wing obovate, ca. 9 mm. Pollination Apr-May, seed maturity Sep-Oct.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Picea crassifolia occurs in high mountain ranges of Central Asia, mainly on north-facing slopes, above steppe or desert, at elevations between 1,600 m and 3,800 m a.s.l. It occurs on calcareous and non-calcareous soils (the first soil type e.g. in Helan Shan). The climate is cold continental and dry, with most of the precipitation falling as snow. It forms mostly pure forests, here and there with Betula albosinensis and groves of Populus tremula.

Systems
  • Terrestrial
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* Mountains; 1600-3800 m.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Picea crassifolia

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Picea crassifolia

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 4
Specimens with Barcodes: 14
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2013

Assessor/s
Carter, G. & Farjon, A.

Reviewer/s
Thomas, P. & Christian, T.

Contributor/s

Justification
At present, there is no decline recorded for this species. Most of its subpopulations are in very remote mountain ranges. There is a possibility that exploitation will increase in future, due to increased demand for timber. At this stage Picea crassifolia is assessed as Least Concern.
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Population

Population
The global population is thought to be stable.

Population Trend
Stable
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Threats

Major Threats
Logging could be a threat although China's current policies (e.g. the National Forest Conservation Programme) restrict this activity in sensitive areas.
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Management

Conservation Actions

Conservation Actions
This species is present in several protected areas and also occurs in remote areas where there has been little disturbance.
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Wikipedia

Picea crassifolia

Picea crassifolia is a species of conifer in the Pinaceae family. It is found only in China.

References

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Notes

Comments

The uses of the timber are similar to those of Picea asperata.
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