United Arab Emirates (the)
Official name
United Arab Emirates
ISO alpha-2 code
AE
ISO alpha-3 code
ARE
ISO numeric-3 code
784
Continent
Asia
Assessment ID
330765
Taxon name
Heliotropium ramosissimum
Uploaded by
National Red List Database
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.
Assessment ID
330764
Taxon name
Heliotropium kotschyi
Uploaded by
National Red List Database
Scientific name
Heliotropium kotschyi
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
heliotropiaceae
Genus
Heliotropium
Species
kotschyi
Taxonomic notes and synonyms listed
The name Heliotropium kotschyi is an accepted name in The Plant List, but according to the Catalogue of Life, the species is an ambiguous synonym to Heliotropium ramosissimum (Lehm.) Sieb. ex DC. The African Plants Database and Plants of the World Online also place the species as a synonym of Heliotropium ramosissimum.
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
Assessed as
Least Concern
Abbreviated status
LC
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
The species is widespread in the UAE and assessed as Least Concern.
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.
Endemic to region
No
Endemism Notes
Endemism Notes
This species is endemic to the Arabian Peninsula
Taxon distribution as listed in assessment
The species is common and widespread along coasts in the UAE, but also found inland, although absent from deeper and mobile sandy areas and from steeper and higher mountains.The species is endemic to the Arabian Peninsula (Oman to Qatar; Board of Trustees, RBG Kew 2019). The species is also reported for Bahrain, and likely also occurs in Saudi Arabia.
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
This species is found in coastal and sabkha areas, and is tolerant of saline soils. It thrives in semi-saline flats and alluvial gravels, but is absent from deeper and mobile sands, and from higher elevations.
Threats listed in assessment
Grazing by livestock may impact the species in parts of its range, and impacts from coastal development are likely to have been significant.
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.
Assessment ID
330763
Taxon name
Heliotropium digynum
Uploaded by
National Red List Database
Scientific name
Heliotropium digynum
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
heliotropiaceae
Genus
Heliotropium
Species
digynum
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
Assessed as
Least Concern
Abbreviated status
LC
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species is widespread at lower altitudes in the UAE. Although data are lacking on the population size and trend, the species is assessed as Least Concern as it is thought unlikely that it will approach the thresholds for a threatened category.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
This species is widespread in the sandy desert region of the UAE (Jongbloed et al. 2003), including Jebel Hafeet (Sakkir and Brown 2014). Globally, the species is native to northern Africa and Asia-Temperate (Arabian Peninsula, Afghanistan) (Board of Trustees, RBG Kew 2019).
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
This species is a perennial 'shrublet', 0.4(0.6) m in height, found on sand between dunes (sandy inter-dune corridors) and sandy plains (Jongbloed et al. 2003, Mahmoud et al. 2018).
Threats listed in assessment
Grazing by livestock may impact the species in parts of its range, as well as development in areas closer to the coast.
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.
Assessment ID
330762
Taxon name
Ehretia obtusifolia
Uploaded by
National Red List Database
Scientific name
Ehretia obtusifolia
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
ehretiaceae
Genus
Ehretia
Species
obtusifolia
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
Assessed as
Critically Endangered
Abbreviated status
CR
Qualifying criteria (if given)
D
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species was first recorded for the UAE in 1996; this single know location at Jebel Qitab, from c. 650 m to c. 1,000 m asl, still remains. The species has an extent of occurrence (EOO) and an area of occupancy (AOO) of less than 20 km<sup>2</sup> and occurs in one location, based on drought and the potential threats of grazing. G.R. Feulner (in litt, MEW 2010) reported a maximum of 30 plants, perhaps fewer than 20, and there was little or no regeneration seen. The species is assessed as Critically Endangered (CR D) based on the number of mature individuals being less than 50. Whilst the species occurs at other sites within the Hajar Mountains in Oman, it is thought that there is little opportunity for a rescue effect, and the assessment remains CR.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
This species was first recorded for the UAE in 1996 from cliffs on Jebel Qitab at c. 1,000 m asl (Feulner 1997) and this remains the single known site for the species in the UAE. The species is locally common at a small number of localities above c. 800 m elsewhere in Hajar Mountains in Oman (including Jebel Akhdar and Jebel Ghaweel; Feulner 1997). It is absent from the Ru'us al-Jibal in the UAE (Feulner 2011). The species has an EOO and an AOO of less than 20 km<sup>2</sup>. Jongbloed et al. (2003) show the species in the Wadi Khabb Shamsi gorge, in Oman. The native range of this species is from southern Africa, through the Arabian Peninsula, to northwestern India (Board of Trustees, RBG Kew 2019).
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
The species is found on moist and sheltering northeast facing slopes, summit cliffs and ravines at Jebel Qitab (Feulner 2014). It generally grows amongst rocks, where it is often found spread below other large shrubs or trees (Feulner 2014), and is often associated with olive trees (G.R. Feulner, in litt, MEW 2010). Little or no regeneration is seen.
Threats listed in assessment
The species has been impacted in the past by periods of drought (Feulner 2014). Grazing by feral donkeys and goats may also pose a threat.
History
The species was first seen in 1997, when they were in better condition (wetter years) but with the same or similar number of individuals.
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.
Assessment ID
330761
Taxon name
Echiochilon persicum
Uploaded by
National Red List Database
Scientific name
Echiochilon persicum
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
boraginaceae
Genus
Echiochilon
Species
persicum
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
Assessed as
Least Concern
Abbreviated status
LC
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species is widespread in northeastern parts of the UAE and the population trend is considered to be stable. It is thought that the species qualifies as Least Concern.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
In the UAE, this species is restricted to the Hajar Mountains (Jongbloed et al. 2003), where it is widespread but uncommon (Feulner 2016), the Ru'us al-Jibal (Feulner 2011), and Jebel Hafeet (coll. <a href=""http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8111c8f6-4643-4c41-9e0e-40a4af264402"">W. Thesiger, 1948</a>; Wadi Tarabat; Fawzi and Ksiksi 2012). In the Ru'us al-Jibal, the species is occasional, from c. 800 to 1,250 m asl (Feulner 2011). The species is absent from Wadi Wurayah National Park (WWNP) according to Feulner (2016; only found in the upper parts of Wadi Siji) but was reported for the protected area by Judas (2016). The species has also been recorded (Sharjah Seedbank & Herbarium) from Fili on the Sharjah-Kalba Road (Sharjah) and from the coast in Ras Al Khaimah, however both these records are excluded as outside the natural range of the species in the UAE. The global range of this species is from north-east Africa, through the Arabian Peninsula to southern Iran and Pakistan (Board of Trustees, RBG Kew 2019).
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
Found along the slopes of mountains and associated plains (MEW 2010) and in wadis. A small perennial sub-shrub.
Threats listed in assessment
There is no information available.
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.
Assessment ID
330760
Taxon name
Echiochilon jugatum
Uploaded by
National Red List Database
Scientific name
Echiochilon jugatum
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
boraginaceae
Genus
Echiochilon
Species
jugatum
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
Assessed as
Endangered
Abbreviated status
EN
Qualifying criteria (if given)
B1ab(iii,iv,v)
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
In the UAE, this species is found along the Arabian Gulf coast. The estimated EOO of this species is 779 km<sup>2</sup> and is estimated to occur at three threat-based locations. Echiochilon jugatum is undergoing a continuing decline in the extent and quality of its habitat due to ongoing coastal development in the UAE. For example, the Taweela subpopulation of this species has now been lost due to the construction of an aluminium plant. Therefore, it is assessed as Endangered.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
In the UAE, this species is found along the Gulf coast, including Ras al-Khiamah (Jongbloed et al. 2003, MEW 2010) although Hornby (2005), who previously found the species at Taweela, considered it to be a ""very thinly spread"" species. The estimated EOO of E. jugatum is 779 km<sup>2</sup> and is considered to occur at three locations based on ongoing degradation and development. The global range of this species is through the Arabian Peninsula from sea level to 200 m asl in Bahrain, Qatar, United Arab Emirates, Oman (Långström 2002), and Saudi Arabia (Norton et al. 2009).
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
It is a perennial shrublet that grows on sand (Långström 2002). In the UAE, the species is found on coastal saline soils (MEW 2010).
Threats listed in assessment
This species has been impacted by continuing coastal development in the UAE. For example, the subpopulation previously found at Taweela has now been lost due to construction of an aluminium plant (G. Brown pers. comm. 2019).
History
Coastal development within the UAE has been increasing in frequency and intensity since 1996, reducing the extent and quality of available habitat for this species.
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.
Assessment ID
330759
Taxon name
Echiochilon callianthum
Uploaded by
National Red List Database
Scientific name
Echiochilon callianthum
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
boraginaceae
Genus
Echiochilon
Species
callianthum
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
Assessed as
Vulnerable
Abbreviated status
VU
Qualifying criteria (if given)
D1
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
In the UAE, this species is restricted to the southern Hajar Mountains and to Jebel Hafeet. The extent of occurrence (EOO) is restricted, and the area of occupancy (AOO) is also likely to be highly restricted given the scattered distribution. The species occurs in more than ten locations, including protected areas, however the population size is inferred to be low, likely to be less than 1,000 mature individuals. As a result, the species qualifies as Vulnerable (D1). Whilst the species occurs in Oman, the potential for any rescue effect is not known, and no regional adjustment is applied.
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.
Endemic to region
No
Endemism Notes
Endemism Notes
This species is endemic to the Arabian Peninsula
Taxon distribution as listed in assessment
In the UAE, this species is restricted to the southern Hajar Mountains, from the Fujairah area (G.R. Feulner in lit. in MEW 2010) and the 'Olive Highlands' to Jebel Hafeet (M. Jongbloed in Jongbloed et al. 2003, Feulner 2014). The species occurs in Wadi Helo (El-Keblawy et al. 2016), and has been recorded from Jabal Sahab, olive wadi (Wadi Sfai; M. Tsaliki pers. comm. 2019). This species is endemic to the Arabian Peninsula, where it is found from eastern central Yemen to Oman (Board of Trustees, RBG Kew 2019) and the eastern UAE.
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
The species is found on rocky hillsides of wadis (Gairola et al. 2017). It is a perennial sub-shrub to c.0.3 m in height (Jongbloed et al. 2003).
Threats listed in assessment
The species is likely to be grazed.
History
It is presumed that the species would have had a similarly restricted distribution and population size in 1996.
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.
Assessment ID
330758
Taxon name
Anchusa aegyptiaca
Uploaded by
National Red List Database
Scientific name
Anchusa aegyptiaca
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
boraginales
Family
boraginaceae
Genus
Anchusa
Species
aegyptiaca
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
Assessed as
Least Concern
Abbreviated status
LC
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
Although this species has a restricted distribution within the Hajar Mountain range, it is known to occur in the Wadi Wurayah National Park, and may be specialised to this particular region. It is therefore assessed as Least Concern.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
Within the UAE, it has been recorded from the Hajar Mountains (Jongbloed et al. 2003). Globally, this species occurs from the eastern Mediterranean to Iran (Board of Trustees, RBG Kew 2019).
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
It is an annual species that can grow up to 40 cm in height (Jongbloed et al. 2003). This species has lance-shaped, pointed leaves with toothed edges and produces yellow-white flowers between February and April (Jongbloed et al. 2003). It typically grows in silt substrates, between rocks, within wadis and on low mountain slopes (Jongbloed et al. 2003).
Threats listed in assessment
There is no information available.
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.
Assessment ID
330757
Taxon name
Asparagus falcatus
Uploaded by
National Red List Database
Scientific name
Asparagus falcatus
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
liliopsida
Order
asparagales
Family
asparagaceae
Genus
Asparagus
Species
falcatus
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
Assessed as
Data Deficient
Abbreviated status
DD
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species is known from a single location in the UAE. Without detailed information about its origin, distribution, potential threats and population status, it is difficult to accurately assess this species. It is therefore assessed as Data Deficient.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
There is only one record of this species which is from Wadi Farfar (Jongbloed et al. 2003) in the northeast of the UAE. In Africa, this species ranges from South Africa to south-western Ethiopia and through the Arabian Peninsula. It has also been recorded from India and Sri Lanka (Board of Trustees, RBG Kew 2018). GRIN (2019) only lists its occurrence within Yemen in the Arabian Peninsula.
Is there a map available in assessment?
Incomplete
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
This perennial, straggly and woody species is found in gravel along wadis (Jongbloed et al. 2003). Flowering likely takes place between February and April, however this species has never been reported in flower (Jongbloed et al. 2003). It is a crop wild relative of asparagus, Asparagus officinalis (Kameswara Rao 2013).
Threats listed in assessment
There is no information available.
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.
Assessment ID
330756
Taxon name
Glossonema varians
Uploaded by
National Red List Database
Scientific name
Glossonema varians
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Kingdom
Plantae
Phylum
tracheophyta
Class
magnoliopsida
Order
gentianales
Family
apocynaceae
Genus
Glossonema
Species
varians
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
Assessed as
Near Threatened
Abbreviated status
NT
Qualifying criteria (if given)
D1
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species is considered to be rare within its range and is often grazed to the point of visibly stunted growth. This may pose a significant threat to the species, however the full extent of this is still unclear. Although the species occurs in a National Park, it is important to draw attention to this potentially threatened and rare species. As a result, it is cautiously assessed as Vulnerable (D1) as a result of the small number of mature individuals, which is suspected to be close to or less than 1,000, but no reliable count has been made. It also has a restricted distribution (estimated EOO: 6,378 km<sup>2</sup>). The species occurs in adjacent parts of Oman and the seed is wind-dispersed, therefore the assessment is revised down by one category to Near Threatened.
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.
Endemic to region
Not assigned
Taxon distribution as listed in assessment
In the UAE, this species occurs in the Hajar Mountains (Jongbloed et al. 2003), the Ru'us al-Jibal mountains, the Wadi Wurayah National Park, and in the Olive Highlands (Feulner 2011, 2016). It has been recorded at altitudes up to 1,900 m (Feulner 2011). The estimated extent of occurrence (EOO) of this species is 5,714 km<sup>2</sup>. Individual records include the upper parts of Wadi Sfai (M. Tsaliki pers. comm. 2019). It has also been recorded from Jebel Hafeet and from the Al Ain area. Globally, this species occurs in the Arabian Peninsula, Iran, Pakistan and India (Board of Trustees, RBG Kew 2018).
Is there a map available in assessment?
Yes
Terrestrial
Not_assigned
Freshwater
Not_assigned
Marine
Not_assigned
Habitat details as listed in assessment
This is a perennial or annual succulent that grows up to 35 cm (Western 1992, Jongbloed et al. 2003). It produces purple flowers between February and May, in addition to characteristic pickle-shaped fruit, and grows among rocks, gravel plains, wadis and mountains (Jongbloed et al. 2003, Feulner 2016). When the plant is damaged, it secretes milky sap (latex) which is characteristic of Asciepiadaceae species (Western 1992). The species is considered to be a xerohalophyte i.e. a salt-tolerant desert species (Böer and Saenger 2006).
Threats listed in assessment
This species is may be difficult to identify as the plant is often grazed to the point of a very stunted growth form (Western 1992) and fruits are consumed by people.
History
The situation is not thought to have changed for this species since 1996.
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.