Camellia grijsii 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Theales Theaceae

Scientific Name: Camellia grijsii Hance
Taxonomic Notes: Several cultivated forms of this Camellia species have been collected by G. Orel et al. on several occasions. No wild population has been located. The adult foliage (but not the flowers) of C. grijsii Hance resembles the adult foliage of C. pitardii Coh. Stuart.

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2015
Date Assessed: 2015-04-29
Assessor(s): Rivers, M.C.
Reviewer(s): Oldfield, S.
Contributor(s): Yang, S.
Camellia grijsii is a widespread species in southeastern China. There are reports of a 30% population decline due to deforestation, dams and increased pressure from the human population. However, the extent and time frame of this decline is not fully known. More information is needed to monitor this species. The species is listed here as Data Deficient.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Camellia grijsii is endemic to China. Flora of China states the distribution as Fujian, northwest Guangdong, north Guangxi, Guizhou, west Hubei, Hunan, east Jiangxi, south Shaanxi, Sichuan and Zhejiang provinces. The estimated extent of occurrence (EOO) is large (greater than 900,000 km2).
Countries occurrence:
China (Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Zhejiang)
Additional data:
Continuing decline in extent of occurrence (EOO):Yes
Upper elevation limit (metres):500
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There is little population information for this species. A decline in population size of 30% (or more) has been recorded (GTSG 2012), however the reasons for this decline and the time period over which it was measured are not recorded. Zou et al. (2013) describe the species as scattered. There have also been fewer collections made in recent years (S. Yang pers. comm. 2015).
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:This species tolerates a variety of aspects. This may be presumed by observing the many cultivars and varieties of this Camellia species. It is a perennial shrub of one to three metres high. The age of a number of cultivated specimens (in China and Viet Nam) has been estimated to be in excess of 80 years. This species mainly propagates by seed, however it has a very low seed reproduction rate which limits propagation.
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: The seed is used to produce cooking oil. As cooking oil, it compares favourably with olive oil and has therapeutic value for health. In addition, it is used in the manufacture of soap, margarine, lubricants, hair oil, paint, rustproof oil and other compounds with a high-molecular weight as well as in cosmetics and dermopharmacy (Zou et al. 2013). It is a potentially important as a garden and landscape plant.

Threats [top]

Major Threat(s): The recent building of the Three Gorges Reservoir on the boundary of Chongqing municipality and Hubei province has partially damaged the wild habitats of Camellia grijsii through submersion of the area around the reservoir. Furthermore the areas in which this species is found are likely to be affected by widespread deforestation due to agriculture and urbanisation. More research should be carried out to determine any future threats to this species.

Conservation Actions [top]

Conservation Actions: Limited conservation actions have been identified. Plants in cultivation are usually selected clones and not ‘pure’ species. It is found in many ex situ collections worldwide (PlantSearch 2015). It is listed as a national second-grade protected plant species in China.

Citation: Rivers, M.C. 2015. Camellia grijsii. The IUCN Red List of Threatened Species 2015: e.T32327A2815006. . Downloaded on 23 June 2018.
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