Taxon name
Allosorus acrosticus
(Balb.) Christenh.
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Allosorus acrosticus
(Balb.) Christenh.
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Ferns and Allies
Species authority
(Balb.) Christenh.
Taxonomic notes and synonyms listed
This is an allotetraploid species derived from the hybridisation between A. pteridioides and A. persicus.
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)
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Assessed as
Least Concern
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
The species occurs in the Ru'us al-Jibal within the UAE. It is not thought to be facing any widespread threats and its population trend is likely stable. Therefore, it is assessed as Least Concern.
Assessment details
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
In the UAE, this species is common in the Ru'us al-Jibal to c. 1,900 m asl (Feulner 2011, Rothfels et al. 2012). There are scattered records to the south from the Hajar Mountains, including a record from the upper part of Wadi Siji in the Wadi Wurayah National Park buffer zone (WWNP; Feulner 2016). D. Aplin (pers. comm. 2020) found a new southern record for the species in the UAE, from Ra's al Khaimah, west of Al Hayl. Rothfels et al. (2012) record numerous records of the species from adjacent parts of the Musandam Peninsula. Globally, this is a mostly Mediterranean species, extending from Cape Verde across North Africa and southern Europe to Greece, through the Arabian Peninsula, along the northern Black Sea coast and into Kazakhstan and northern India.
Is there a map available in assessment?
Yes
Habitat and systems
Ecological system type
Habitat
Habitat details as listed in assessment
In the Ru'us al-Jibal, it is found in the shelter of boulders to c. 1,900 m asl (Feulner 2011).
Threats and conservation measures listed
Threats listed in assessment
There are no widespread threats.
Publication
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.
