Juniperus convallium 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Pinopsida Pinales Cupressaceae

Scientific Name: Juniperus convallium Rehd. & E.H.Wilson
Infra-specific Taxa Assessed:
Taxonomic Source(s): Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2013
Date Assessed: 2010-12-14
Assessor(s): Yang, Y. & Liao, W.
Reviewer(s): Adams, R & Thomas, P.
The species assessment will be driven by the typical variety and so is Least Concern based on the information for that variety. Variety microsperma needs further work to determine if it is a good taxon and field surveys are required to determine its true range, population size and trends, plus if there are any threats to it
Previously published Red List assessments:

Geographic Range [top]

Range Description:Endemic to China where it is recorded from S Gansu, SE Qinghai, W Sichuan, E Xizang [Tibet], and NW Yunnan.
Countries occurrence:
China (Gansu, Qinghai, Sichuan, Tibet [or Xizang], Yunnan)
Additional data:
Estimated area of occupancy (AOO) - km2:4500
Lower elevation limit (metres):2200
Upper elevation limit (metres):4430
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Locally common.
Current Population Trend:Stable
Additional data:
Continuing decline of mature individuals:No
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:In high montane to subalpine coniferous forest, juniper woodland, occasionally in the ecotone to alpine steppe, at high altitudes often on S-SW facing slopes or on sun-warmed rock outcrops, both of limestone and granitic rock. The altitudinal range is 2,200-4,430 m a.s.l. Associated with Abies, Picea (these genera predominantly on N-NE facing, moister and cooler slopes), Juniperus saltuaria, J. tibetica (which usually reaches higher altitudes), Quercus aquifolioides, Seriphidium (Artemisia), Caragana, and Rosa; woodlands are often degraded to scrub-pasture. In the dryer valleys beyond the direct monsoon influence the lower limit of annual rainfall (mostly summer) is ca. 300 mm at 3,600-3,800 m. Low winter temperatures, to which this species is more sensitive than J. tibetica, cause it to remain below the latter in many areas, but there are mixed stands especially on S-SW exposed slopes where J. convallium can occur at higher altitudes.
Continuing decline in area, extent and/or quality of habitat:No
Generation Length (years):10

Use and Trade [top]

Use and Trade: Not known, but probably used  for firewood in areas with few trees.

Threats [top]

Major Threat(s): No specific threats have been recorded for this species although climate change may have an impact in the future.

Conservation Actions [top]

Conservation Actions: Known from several protected areas.

Citation: Yang, Y. & Liao, W. 2013. Juniperus convallium. The IUCN Red List of Threatened Species 2013: e.T42230A2964672. . Downloaded on 16 October 2018.
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