Lactuca orientalis | UAE National Red List of Vascular Plants

Taxa
Lactuca orientalis | (Boiss.) Boiss.
Location
Countries in Assessment
United Arab Emirates
Country ISO code(s)
ARE
Does the assessment cover a marine EEZ area(s)?
Off
Scope (Assessment)
National
Taxon
Taxonomic Group
Plants
Taxonomic Group Level 2
Flowering Plants
Assessed taxon level
Species
Taxon distribution as listed in assessment
In the UAE, this species has been recorded from the Ru'us al-Jibal (Feulner 2011). It is typically recorded from 400 m to 1,900 m altitude within this area (Feulner 2011). D. Aplin (pers. comm. 2019) made the first record of this species outside of the Musandam Peninsula, extending the southern-most extent of the distribution to a steep shaded wadi at 570 m asl, a kilometre north of Al Khulaibiah in Fujairah. Globally, the native range of this species encompasses Egypt, the eastern Mediterranean and the Arabian Peninsula through to western Asia (Board of Trustees, RBG Kew 2019).
Habitats and Ecology
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
No
Habitat
Habitat details as listed in assessment
This species is a perennial sub-shrub with mounded habit to 0.6 m. Its inflorescence forms a wire-netting-like structure around the plant, while its leaves are seasonally deciduous growing from rocky areas along steep wadi that would receive brief but significant, fast-flowing water during rains. It is often associated with Forsskaolea viridis. The plant has atypical flowers for an Asteraceae, with four yellow ray flowers but no disc flowers (D. Aplin pers. comm. 2019). This dwarf shrub can be found growing in silty substrates within gravel wadis and plains in addition to the margins of nearby fields (Feulner 2011). Lactuca orientalis is a crop wild relative of lettuce, Lactuca sativa (Kameswara Rao 2013).
Is there a map available in assessment?
Yes
Assessed status
Asessment status in full
Least Concern
Assessment status abreviation
LC
Assessment rationale/justification
Although the species is uncommon, it is not thought to be impacted by any significant threats and is assessed as Least Concern.
About the assessment
Assessment year
2019
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Affliation of assessor(s)/contributors/reviewers listed on assessment
Government
IGO
Assessor affiliation specific
Government|IGO
Criteria system
Criteria system specifics
IUCN v3.1 + Regional Guidelines v4.0
Criteria system used
IUCN
Criteria Citation
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.
Endemism
Endemic to region
Not_assigned
Endemism Notes
Is an endemic?: Not_assigned
Conservation
Threats listed in assessment
There are no known widespread threats. There are no immediate threats to the population at Al Khulaibiah, although at the entrance to the wadi (c.400 m away), there is evidence of recent bulldozing of silt and sand. However, the subpopulation resides sufficiently high enough for this not to be a threat (D. Aplin pers. comm. 2019).
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Scientific Name Kingdom Phylum Class Order Family Genus
Lactuca orientalis Plantae Tracheophyta Magnoliopsida Asterales Asteraceae Lactuca