Magnolia sargentiana 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Magnoliales Magnoliaceae

Scientific Name: Magnolia sargentiana
Species Authority: Rehder & E.H.Wilson
Magnolia conspicua Salisb. subspecies emarginata Finet & Gagnep.
Magnolia denudata Desr. subspecies emarginata (Finet & Gagnep.) Pamp.
Magnolia emarginata (Finet & Gagnep.) W.C.Cheng
Magnolia sargentiana Rehder & E.H.Wilson subspecies robusta Rehder & E.H.Wilson
Yulania sargentiana (Rehder & E.H.Wilson) D.L.Fu

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(iii,v) ver 3.1
Year Published: 2014
Date Assessed: 2007-04-02
Assessor(s): Global Tree Specialist Group
Reviewer(s): Oldfield, S.
Magnolia sargentiana was previously classified as Endangered however further survey work has revealed extensive and protected populations in southern Sichuan of at least 20,000 individuals. It is threatened by habitat clearance and exploited for medicinal use which is a threat to the remaining forest habitat, with an area of occupancy of 860 km2. The areas where the extensive populations occur are protected within reserves.
Previously published Red List assessments:
1998 Endangered (EN)
1998 Vulnerable (V)

Geographic Range [top]

Range Description: Magnolia sargentiana is endemic to China where it has a wide but very fragmented distribution in Sichuan and Yunnan. The total area of mixed forest habitat and area of occupancy of this species are estimated at 860 km2.
Countries occurrence:
China (Sichuan, Yunnan)
Estimated area of occupancy (AOO) - km2: 860
Number of Locations: 10
Lower elevation limit (metres): 1400
Upper elevation limit (metres): 3000
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It was thought that only around 40-50 trees of Magnolia sargentiana remained in Yunnan but Global Trees Campaign field surveys in April 2006 recorded 12 sites with a total population estimated at about 20,000. A Sichuan University/University of British Columbia Botanic Garden team recorded extensive and protected populations in two of four main reserves in the Dafengding region of southern Sichuan covering at least 60,000 ha of mixed evergreen/deciduous forest, during fieldwork in September 2006. Peripheral areas covering approximately a further 20,000 ha have generally good protection and regeneration.
Current Population Trend: Decreasing
Additional data:
Number of mature individuals: 20000 Continuing decline of mature individuals: Yes
Extreme fluctuations: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Magnolia sargentiana trees grow between 8 to 25 metres tall in evergreen and deciduous mixed forests.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: The bark of Magnolia sargentiana trees is used in traditional medicines. The wood is also utilised.

Threats [top]

Major Threat(s): Magnolia sargentiana is threatened by forest clearance to make way for Gastrodia planting, cutting for wood and gathering of its bark for use in traditional medicines.

Conservation Actions [top]

Conservation Actions: There are no known conservation actions proposed for Magnolia sargentiana however peripheral areas covering a large proportion of its distribution have good protection and regeneration. This species is absent from ex situ collections.

Citation: Global Tree Specialist Group. 2014. Magnolia sargentiana. The IUCN Red List of Threatened Species 2014: e.T31289A2803595. . Downloaded on 26 November 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided