Abdul Wali Ahmed Al-Khulaidi

Agricultural Research and Extension Authority Yemen · Rangae land

The current study aims to update the list and revise the nomenclature of Acacia s.l., one of the most widespread genera in Yemeni flora. The study was compiled by consulting a number of information sources, including relevant literature and online databases. According to recent molecular phylogenetic studies, Acacia s.l. is polyphyletic and the rec...

Our goal was to find and record new plants that had not previously been recorded for the flora of Arabian Peninsula, particularly for Saudi Arabia. Collections were made in several ecologically important areas of Saudi Arabia, particularly in Faifa region. It was revealed that eight new vascular plant species and one liverwort (Bryophyte) belonging...

Plant conservation planning requires assessing and monitoring the natural vegetation and the flora, particularly rare, endangered, and endemic species. A study aims to explain the status of an Arabian Peninsula endemic plant named Aloe castellorum J.R.I. Wood to aid conservation efforts. Around the world, this plant has only been recorded in Yemen...

This study aimed to demonstrate the role of Zea mays or corn silk (CS) in the treatment of kidney stones after its proven effectiveness in folk medicine. Twenty-four rats were divided into four groups, the first represented the control group (negative control), and the second (positive control), was treated with 75% of ethylene glycol (EG) and 1% o...

The geographical distribution of the Aloe shadensis Lavranos & Collen. in the Al-Baha region, Saudi Arabia was investigated. Areas around Shada Mountain and Qilwa area (Qilwa and Al-Mukhwah governorates) were visited. Number of individual plants and their location were recorded. A. shadensis occupies a very narrow regional and local geographic area...

The geographical distribution of the Aloe shadensis Lavranos & Collen. in the Al-Baha region, Saudi Arabia was investigated. Areas around Shada Mountain and Qilwa area (Qilwa and Al-Mukhwah governorates) were visited. Number of individual plants and their location were recorded. A. shadensis occupies a very narrow regional and local geographic area...

The study aims to generate vegetation mapping for the study area's existing vegetation and apply a vegetation typification approach that can be used to identify the vegetation structure of any region in the Arabian Peninsula. To highlight the plant diversity and the vegetation communities for nature conservation purposes, a case study in Albaha reg...

Based on vegetation surveys made in the southern region of Saudi Arabia between 2020 and 2021, five new plant taxa including four species and one subspecies, belonging to four families that had not previously been recorded in Saudi Arabia's flora were discovered. Within the Arabian Peninsula, all newly recorded species (i.e., Alysicarpus vaginalis...

Based on plant collections made in Abyan governorate (southern of Yemen), one new species (Cleome glaucescens DC.), belonging to Cleomaceae that has not previously been recorded in Yemen's flora was discovered. The survey was conducted between March 2020 and June 2022. Within the Arabian Peninsula, this species was recorded only from Oman and Saudi...

Based on plant collections made in Abyan governorate (southern of Yemen), one new species (Cleome glaucescens DC.), belonging to Cleomaceae that has not previously been recorded in Yemen's flora was discovered. The survey was conducted between March 2020 and June 2022. Within the Arabian Peninsula, this species was recorded only from Oman and Saudi...

In the present research, oleuropein (OLE) contents from two Saudi Arabian wild olive trees (Olea europaea L.) leaves (O1 and O2), were collected from two nearby geographical sites differing in altitudes, and were determined via UHPLC-MS analysis. Moreover, total bioactive contents, antioxidant, and cytotoxicity (against MCF-7 and MDA-MB-231 cells)...

Background Gastrointestinal cancers are the most dangerous cancers all over the world. The gut microbiota dysbiosis increases the risk of GI cancers and induces the host’s susceptibility to carcinogenic bacteria. Antibiotic resistance is rising in these bacteria. Thus, discovering new safe and effective antibacterial agents is a worldwide concern....

A new species of Celtis toka (Family Cannabaceae) from Faifa, Saudi Arabia is described and illustrated. Morphological descriptions with a distribution map and photograph of the species were provided. Celtis toka is only recorded from West and Middle of the Sahel region and East Tropical Africa to Yemen in Arabian Peninsula. This record conceded as...

The Arabian Peninsula characterized by very rich flora, the flora of the Arabian Peninsula is still not explored well. Field work was conducted in 2016 in high altitude areas of Albaha region, between Hawalah (SE Albaha region) and Dos and surrounding areas (NW Albaha region) to investigate the unknown plant species so that to enhance the flora of...

Medicinal plants have a great role in influencing health all over the world. There are few studies for the phytochemical investigations in medicinal plants were conducted in Saudi Arabia especially in Albaha region in south-western Saudi Arabia. Therefore this study focused on the detection of the phytochemical composition of the most dominant eigh...

Assessment of plant species in particular rare and endemic is essential for monitoring and conservation planning. I aimed to support conservation activities by addressing knowledge of the status of Aloe dhufarensis Lavranos, one of the endemic plants in the Arabian Peninsula. Information on the status and distribution range of A. dhufarensis in the...

Plant hotspot areas are the areas that are very rich in plant species diversity. These areas have a priority for conservation. To highlight the plant diversity for nature conservation purposes a case study in Al Baha region, Saudi Arabia is presented, in which the importance of the natural vegetation and flora of one of the hotspot areas of Saudi A...

The paper presents Aspilia kotschyi (Sch.Bip. ex Hochst.) Oliv. (Asteraceae), a newly recorded genus of vascular plants, during the fieldwork in Fayfa region in the Southwest of Saudi Arabia. Flora books and scientific research papers dealing with the flora of Saudi Arabia have not mentioned any species of Aspilia genus. The taxon was found for the...

An endangered and rare species Aloe pseudorubroviolacea from the plant family Asphodelaceae which is presently recorded as endangered in Saudi Arabia collected from Al-Baha region of Saudi Arabia its GPS Latitude and Longitude coordinates 19.8345, 41.5481. The chloroplast matK and rbcL gene was considered in this study based on molecular identifica...

The plant diversity Sowth West of the Arabian Peninsula is considered to be very high due to its location, variation of climates, and geographical features. Generally, the Arabian Peninsula characterized by a very rich flora and is still not explored well. During the field survey of rare plant species, the authors collected a specimen of new taxa f...

The study area is located on the South western mountains of Republic of Yemen, It is characterized by arid and semi-arid climate with high temperatures and low average annual rainfall. The aims of this study are to explore the natural plant species of one of the Important Plant areas of Arabian Peninsula and to evaluate the chance to be a protected...

Mapping Asia Plants (MAP) is a comprehensive project that aims to build a detailed infrastructure for integrating Asian plant distribution data a global-scale array of knowledge for plant biodiversity conservation. Here, we provide a brief historical review of botanical research in Southwest Asia – an understudied botanical region with high conserv...

Farmers and traders have developed a system of names to refer to different qat (Catha edulis) cultivars, using stem color as the primary trait to differentiate them. In this study, we tested if the named cultivars from Ethiopia, Kenya, and Yemen represent genetic clusters. We also quantified clonal reproduction and tracked the geographic dispersal...

550 species of flowering plants recorded of which 204 plant species belonging to 58 families were identified as honeybee flora Dominant honeybee flora with their frequency (freq.) Acacia origena (Freq.28), Acacia ehrenbergiana (Freq.23), Acacia asak (Freq.23), Blepharisedulis (Freq.21), Acacia tortilis (Freq.20), Ziziphusspina-christi (Freq.20), Ac...

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The present study has been carried out in Al Baha region, southwest of Saudi Arabia. Five land use types were selected, namely abandoned terraces, communal areas, protected areas (enclosure areas), national parks and settlement areas. The quadrat of 25m * 25 m was laid over the different land uses to study the vegetation structure, plant compositio...

Optimum Information on the medicinal plants is lacking in the Saudi Arabia including Al-Baha region. The information will be useful in sustainable use of these medicinal plants in future time and developing strategies for protecting, sustainable and proper uses of these plants. The study area is located South West of Saudi Arabia and characterized...

Sabkhas are unique ecosystems that are highly saline and where specially adapted plants are able to grow, flower, and fruit. In general, saline environments are poor in species – for the Arabian Peninsula about 120 taxa are recorded as halophytes which constitute about 4% of the total flora of the Arabian Peninsula. Key halophytes of Arabia are nea...

Background: There is an urgent need to find new xanthine oxidase (XO) inhibitors with few adverse effects and potent activity, not only for treating gout but also to fight diseases associated with XO activity such as cardiovascular diseases, cancer, diabetes, and obesity. Objective: Screening of Saudi medicinal plants for XO inhibitory activity, to...

The study was conducted on Alabna escarpment, southwestern Saudi Arabia, for evaluating the effects of elevation and soil components on the species diversity and plant community. Among 241 species (167 genera and 53 families) recorded in total, therophytes and chamaephytes prevailed in the area while bryophytes were rare. Clustering analysis reveal...

There is general agreement that biodiversity in Yemen is under threat due to mechanized rain-fed agricultural expansion, urban expansion, wood logging and overgrazing. For all these reasons, this study finds it urgent to provide this ecological assessment for the plant diversity and vegetation conservation in Taiz. The floristic composition and hab...

Rare and endangered plant species have been investigated based on intensive field work covering all ecological zones in Albaha region, Saudi Arabia. Different cross sections were placed randomly along different ecological sites. In each different habitat types plant species were recorded and sampled by using quadrates 25 by 25 m, and then most rare...

The study on the floristic analysis and plant diversity was carried out during the years 2014 and 2016 covering the high altitudinal plateau between 1900 to 2475 mater above sea level (m. a. s. l.) of Al Baha region, Saudi Arabia. This attempt was made, to document the density; frequency and diversity of plant species existing in different land for...

The vegetation was surveyed in Wadi Rijaf, part of the Jebel Bura protected area, Yemen. The study aimed to investigate the vegetation of one of the very small number of locations in the Arabian Peninsula where unique endemic plant species are known to occur. The study presents the first systematic vegetation survey of this area. In particular, the...

Background Local natural medicinal resource knowledge is important to define and elaborate usage of herbs, in systematic and organized manner. Until recently, there has been little scientifically written document regarding the traditional uses of medicinal plants in Al Bahah region. Objective This pilot study aims to collect the ethnobotanical inf...

Premise of the study: Qat (Catha edulis, Celastraceae) is a woody plant species cultivated for its stimulant alkaloids. Qat is important to the economy and culture in large regions of Ethiopia, Kenya, and Yemen. Despite the importance of this species, the wild origins and dispersal of cultivars have only been described in often contradictory histo...

Plant species composition patterns and vegetation types were investigated along Elevational Gradients in Al Baha region, Saudi Arabia. Sandy plain, wadis, drainage lines, rocky outcrops, hills and fallow lands occur over a wide geographic range encompassing variation in plant species and communities among these different ecological sites. To provid...

تقع منطقة الباحة في الجنوب الغربي من المملكة العربية السعودية على جبال السراة ، ويحدها من الشمال والغرب منطقة مكة المكرمة ومن الجنوب والشرق منطقة عسير. و تقع على ما بين خطي طول 41/42 شرق خط غرينتش و ما بين دائرتي عرض 19/20 جنوب خط الإستواء. .تم مسح 200 عينة دراسية بابعاد 25 في 25م ، سجلت في هذا الكتاب عدد 325 نباتا بريا تمثل ( 12% من نباتات المملك...

Abstract The study examined 57 geographic location of which 6 sites as declared as protected areas, three others candidate to declare as protected and 48 site proposal to be protected areas in different ecological and ecosystem sites forming approximately 7 % of the Yemen's surface area, in order to maintain the biodiversity and the protection of c...

This study was conducted for the Austria mineral oil administration (OMV) oil company as part of a social, environmental and vegetation impact assessment study in block 29. he contract between Oxania and OMV allows the authors to publish this data. The vegetation of the study area has never been systematically studied or surveyed by botanists. The...

This report aims to review the current land characteristics and use status in Yemen as well as agricultural policies and institutional efforts to combat land degradation in the country. Despite agriculture's relatively poor contribution to the GDP (18%), it remains the most important element of the effort to combat poverty and provide employment to...

An Important Plant Area programme has been initiated for the Arabian region by the IUCN Arabian Plant Specialist Group. The aim of this programme is to assess hotspots of plant diversity in the region and designate the most important as Important Plant Areas. These assessments are conducted on the basis of specific criteria and this paper presents...

Over the last three decades, vegetation surveys in southwest Arabia have documented the existence of a small number of valley forest patches. A well-known area is in Wadi Rijaf, Jabal Bura, a protected area which has recently been surveyed by the current authors. The other valley forest sites in southwest Arabia have not been surveyed for over 15 y...

The isolated massif Jabal Bura (Yemen) is home to the largest area of ‘valley forest’ in southwest Arabia's western escarpment mountains. This study surveys the composition of this very rare forest and records the diversity of vascular plant species. It notes the valley forest as the home of several regionally rare species and records new locations...

The principal objectives of the research are to analyse the distribution and dynamics of plants of the Hadhramaut region and to evaluate the role of the physical parameters and human action on their distribution, survival and conservation. The study area is located in Hadhramaut Governorate and lies in the eastern part of the Republic of Yemen. Thi...

Miller, A. G., Atkinson, R., Khulaidi, A. W. al, Taleeb, N.: Nesocrambe, a new genus of Cruciferae (Brassiceae) from Soqotra, Yemen. — Willdenowia 32: 61–67. 2002. — ISSN 0511-9618. The new genus Nesocrambe, with the sole species N. socotrana, endemic to the island of Soqotra, is described and illustrated. Its affinities and taxonomic position with...

An attempt has been made to study the flora of Tihama (western and eastern side). About 264 different plant species belonging to 165 genera and 57 families are reported in this paper. Es wird der Versuch unternommen, die Flora von Tihama (westlicher und östlicher Bereich) zu untersuchen. Bisher wurde 264 verschiedene Pflanzenarten aus 165 Gattungen...

The Flora of Dhamar and surrounding areas was studied. Plant species belonging to 62 families are presented in this paper. Because of intensive use of the rangelands the vegetation almost everywhere is in a degraded conditions. Dhamar mountain plain appear to be devoided of tree. Several references were used for identification of plants collected (...