In the UAE, this plant species is recorded in Abu Dhabi and Al Ain (Jongbloed et al. 2003), with an additional record from near Khor Fakkan on the east coast. The species is abundant in lawns in Abu Dhabi urban area (G. Brown pers. comm. 2019), however these individuals may well have been introduced or escapees. In the world, it is native to Tropical & Subtropical Old World, but it has been very widely introduced to the Americas and to Australasia (Board of Trustees, RBG Kew 2018).

In the UAE, the species is common on gravel plains and wadi terraces of the western slopes of the Hajar Mountains (Feulner 2016). There are records of this species in Abu Dhabi Emirate (Brown and Sakkir 2004), and from the buffer zone of Wadi Wurayah National Park (park HQ area, and from disused wadi fields at low elevations in the Ru'us al-Jibal; Feulner 2016), although it is uncertain if the Ru'us al-Jibal localities mentioned by Feulner (2011) are within the UAE. Although it is a weed of cultivated crops and is likely to be more widespread than the available records suggest, the UAE native plant working group considered it to be native to the country. The native range of this species is the tropical and subtropical Old World, across almost all of Africa, east through the Arabian Peninsula to southeast Asia; very widely introduced to the Americas and to parts of Europe (Board of Trustees, RBG Kew 2018).

Within the UAE it has been recorded from Wadi Hayl in Fujairah Emirate (Jongbloed et al. 2003). The record mentioned from the Ru'us al-Jibal (Feulner 2011) is from within Oman. Globally, this species is native to Macaronesia and the Sahara to India (Board of Trustees, RBG Kew 2019).

Within the UAE, Dyerophytum indicum is widespread throughout the Hajar Mountains and the Ru'us al-Jibal. It has also recently been recorded from the vicinity of Jebel Hafeet (Sakkir and Brown 2014). Globally, this species is native to the Arabian Peninsula and India (Board of Trustees, RBG Kew 2019).

This species has been recorded at Qarn Nizwa (Jongbloed et al. 2003). More recently, it has also been recorded at Jebel Hafeet (Sakkir and Brown 2013). It is also known from Jebel Fayah and was previously recorded from Khor Zawra, although this locality was recently converted into a golf course. The estimated extent of occurrence for this species is 1,432 km². The global distribution of this species comprises the south-east of the Arabian Peninsula and western Socotra (Board of Trustees, RBG Kew 2019).

This species is locally abundant north of Wadi Qawr and south of Masafi in the Hajar Mountains, within the southeast of the UAE mountains (Feulner 2014, Jongbloed et al. 2003). It is typically found at lower elevations between c. 500 to 600 m (Feulner 2014). According to Feulner, this plant has a restricted range within the UAE (G.R. Feulner, in lit, MEW 2010). The global distribution of this species extends from North East Tropical Africa, Jordan to the Arabian Peninsula, and Pakistan to West Himalaya (Board of Trustees, RBG Kew 2018).

This species is found in scattered locations within the east of the UAE. Jongbloed et al. (2003) report it from mountains and wadis, and show scattered point localities east of Al Ain, from near Hatta, and two other eastern localities, but also show a significant distribution along the coast east of Abu Dhabi city. Feulner (2011) reports occurrence in the Hajar Mountains (wadis, lower slopes, foothills and alluvial plains) without details. Mahmoud et al. (2018) reported the species from plantations along the western slopes of the Hajar Mountains. <a href=""http://data.rbge.org.uk/herb/E00003768"">RBGE Herbarium </a>holds a specimen from the east coast from the 'Kalba date gardens' (1993). The Sharjah Seedbank & Herbarium hold records of this species from near Wahala (Sharjah) to the east near the border with Oman, from the Ras Al-Khaimah coast east at Jazirat Al Hamra, from the Sharjah-Abu Dhabi border north of Al Shwalb, and from south of Dubai city. It has also been reported from Jebel Nazwar. The native distribution of this species is from north-east Africa (Egypt to Kenya) to north-west India, and it has been introduced to the Americas (Board of Trustees, RBG Kew 2018).

This is a common and widespread species in the Hajar Mountains (Jongbloed et al. 2003) and also is recorded south to Jebel Hafeet (Sakkir and Brown 2014). Al Meharibi et al. (2019) show presence of this throughout the east coast. The species is recorded from the Ru'us al-Jibal, although uncertain if from parts of the mountains within the UAE, and confusion is possible with other members of the genus (Feulner 2011). Feulner (2016) considers only this species of Cymbopogon to present in Wadi Wurayah. The native range of this species is in Africa from the Sahara and the Sahel to Kenya, east through the Arabian Peninsula to Iran (Board of Trustees, RBG Kew 2019).

This species was recorded in the Ru'us al-Jibal under the name, Cymbopogon jwarancuse (Jongbloed et al. 2003). It is thought to prefer high elevations (Patzelt 2015), having been recorded from the summit of Ra's Mintera, c. 1880 m asl, in the Ru'us al-Jibal (Feulner 2011). Globally, the native range of this species spans from Turkey to Socotra and on to China (Board of Trustees, RBG Kew 2019). Plants of the World Online lists the UAE as a native country of occurrence for this species (Board of Trustees, RBG Kew 2019).

This species is known from Jebel Ali (Jongbloed et al. 2003), in addition to Jebel Hafeet, Hamriyah, Sharjah, Ras al-Khaimah and Sila in the western UAE. It was also found from Wadi Siji in 2017. Crotalaria persica is known considered to have possibly been lost from Jebel Ali, in addition to subpopulations being lost due to development. In particular, a subpopulation was lost due to construction of a radio mast (G.R. Feulner pers. comm. 2019) and the occurrence in Taweela no longer exists (G. Brown pers. comm. 2019). The estimated EOO for this species is 10,500-15,000 km²and the number of threat-based locations is considered to be close to ten, according to the threat of development. Globally, this species is found from north-east tropical Africa to Pakistan (Board of Trustees, RBG Kew 2019).