Clypeola aspera | UAE National Red List of Vascular Plants

Clypeola aspera | (Grauer) Turrill
Countries in Assessment
United Arab Emirates
Country ISO code(s)
Does the assessment cover a marine EEZ area(s)?
Scope (Assessment)
Taxonomic Group
Taxonomic Group Level 2
Flowering Plants
Assessed taxon level
Taxonomic Notes
We follow Marhold (2011) and Chaytor and Turrill (1935) in considering the authority of this species to be '(Grauer) Turrill' with Peltaria aspera Grauer as the original combination. Plants of the World online (Board of Trustees, RBG Kew 2019) considers the authority to be '(Weber) Turrill' with Peltaria aspera Weber the original combination. Whilst IPNI (2019) places the species as Clypeola aspera Turrill.
Taxon distribution as listed in assessment
Within the UAE, this species is found in the Ru'us al-Jibal (Jongbloed et al. 2003), where it is recorded at altitudes between c.500 m to 1,800 m (Feulner 2011, M. Tsaliki pers. comm. 2019). Globally, the native range of this species spans from Turkey to the Arabian Peninsula and Afghanistan (Board of Trustees, RBG Kew 2019).
Habitats and Ecology
Ecological system type
Terrestrial system
Freshwater system
Marine system
Habitat details as listed in assessment
This species is an annual which can grow up to 10 cm in height and is covered in barbed hairs (Jongbloed et al. 2003). It has narrow oblong leaves and produces white-yellow flowers (Jongbloed et al. 2003). It typically grows within silt substrates in between rocks found at high altitudes (Jongbloed et al. 2003).
Is there a map available in assessment?
Assessed status
Asessment status in full
Least Concern
Assessment status abreviation
Assessment rationale/justification
Although this species appears to have a restricted range within the UAE, it is under-collected, which could mean it appears rarer than it actually is. As a result, it is assessed as Least Concern.
About the assessment
Assessment year
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Affliation of assessor(s)/contributors/reviewers listed on assessment
Assessor affiliation specific
Criteria system
Criteria system specifics
IUCN v3.1 + Regional Guidelines v4.0
Criteria system used
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.
Endemic to region
Endemism Notes
Is an endemic?: Not_assigned
Threats listed in assessment
Grazing by browsers, such as goats, may affect this species in areas of its range (G.R. Feulner in lit., MEW 2010). The impacts of climate change needs further research.
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Scientific Name Kingdom Phylum Class Order Family Genus
Clypeola aspera Plantae Tracheophyta Magnoliopsida Brassicales Brassicaceae Clypeola