Taxon name
Grewia erythraea
Schweinf.
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Grewia erythraea
Schweinf.
Assessed taxon level
Species
Higher level taxonomic groupings
Plants
Flowering Plants
Species authority
Schweinf.
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
This species is widespread throughout the Hajar Mountains, however, grazing by livestock may impact the species in parts of its range. Although data are lacking on the population size and trend, the species is assessed as Least Concern as the population is inferred to be stable.
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
This species is widespread in the Hajar Mountains and Ru'us al-Jibal (Jongbloed et al. 2003, MEW 2010) and also occurs on Jebel Hafeet (Perry 2008). In addition, it has been recorded at the highest points of Jezirat Bidiyat (Western 1993). It is reported to occur at altitudes up to c. 1000 m (Feulner 2011). The native range of this species spans from Egypt through to Central Kenya and to Pakistan (Board of Trustees, RBG Kew 2019).
Is there a map available in assessment?
Yes
Habitat and systems
Ecological system type
Habitat
Habitat details as listed in assessment
Grewia erythraea generally inhabits hillsides (Jongbloed et al. 2003). This perennial shrub species has woody stems and can grow up to 150 cm in height (Jongbloed et al. 2003, Fawzi and Ksiksi 2012). It produces small white flowers between October and February in addition to producing a red berry fruit in 3-4 parts (Jongbloed et al. 2003). It is a characteristic species of the submontane zone which is dominated by grasses, herbs and subshrubs (Patzelt 2015).
Threats and conservation measures listed
Threats listed in assessment
This species is browsed by native grazers including gazelle and ibex, although they don't appear to be a threat to the vegetation (Ghazanfar and Fisher 1998). It is, however, also thought to be browsed by feral goats (Feulner 2011) which may pose a threat, as it is often seen to be heavily grazed (Feulner 2011). This species can grow to the size of a small tree, however, it is typically reduced to a cushion by browsers (Feulner 2016).
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.
