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NRLD - 330040 | Crassula alata

Assessment ID
330040
Taxon name
Crassula alata
(Viv.) A.Berger
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Crassula alata
(Viv.) A.Berger
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
saxifragales
Family
crassulaceae
Genus
Crassula
Species
alata
Species authority
(Viv.) A.Berger
Location and scope
Specific locality or subnational name or regional name
United Arab Emirates (the)
Scope (of the Assessment)
National
Countries included within the scope of the assessment
United Arab Emirates (the)
Country ISO code(s)
ARE
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Assessed as
Data Deficient
Abbreviated status
DD
Criteria system used
IUCN

(see Assessment details)

Assessment rationale/justification
This species is known in the UAE from one confirmed record in 1980 from Jebel Ruwaydah in the southern Ru'us al-Jibal of the UAE, and from one later record from Wadi Bih (also Ru'us al-Jibal). Nothing is known of the population size and trend, and confirmation of the distribution and population status of this species is needed. Therefore, the species is considered Data Deficient.
Assessment details
Year assessed
2019
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Criteria system used
IUCN
Reference for methods given
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1, Second edition. IUCN, Gland, Switzerland and Cambridge, UK. iv + 32pp pp. And IUCN. 2012. Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp.
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
Taxon distribution as listed in assessment
This species was first described for the UAE (Wadi Bih, Ras Al Khaimah) in 1999 (Böer and Chaudhary 1999) but a specimen was actually collected earlier, in 1980 (<a href=""http://data.rbge.org.uk/herb/E00361435"">RBG Edinburgh Herbarium</a>: ""Jabal Ruwaydah, at head of Wadi Sidakh; north-facing limestone hillside, 500 m""). The native range is Greece, the southern and eastern Mediterranean, through the Arabian Peninsula, to southern central China (Board of Trustees, RBG Kew 2019).
Is there a map available in assessment?
Yes
Habitat and systems
Ecological system type
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat
Habitat details as listed in assessment
This species is known to be found in mountains at moderate altitudes.
Threats and conservation measures listed
Threats listed in assessment
Without detailed information on the distribution in the UAE, little can be said about threats, however, as a Palaearctic species on the periphery of its range, it may be susceptible to climate change.
Publication
UAE National Red List of Vascular Plants
Allen, D.J., Westrip, J.R.S., Puttick, A., Harding, K.A., Hilton-Taylor, C. and Ali, H. 2021. UAE National Red List of Vascular Plants. Technical Report. Ministry of Climate Change and Environment, United Arab Emirates, Dubai.