This species is widespread throughout the Hajar Mountains (Jongbloed et al. 2003). It has also been recorded in Jebel Hafeet (Sakkir and Brown 2014), and is presumed to exist within Wadi Tarabat (G.R. Feulner, in litt, MEW 2010). It is part of the typical vegetation within the Jebel al Akhdhar range (Ghazanfar and Fisher 1998). It is locally endemic to the UAE and Oman (Gairola et al. 2017). The native range of this plant includes gulf states, including the United Arab Emirates, and Oman (Board of Trustees, RBG Kew 2019).

Jongbloed et al. (2000) recorded this species from the Ru'us al-Jibal and the Masafi area, based (respectively) on specimens by A.R. Western (scree slope at 1,500 m asl; Sharjah Natural History Museum Herbarium, depicted in Feulner (2011) in Fig. 5.3.31) and B. Böer (UAE University Herbarium). The global distribution of this species is from Karpathos (Greece) to the eastern Mediterranean and Iran, and North Africa (Libya and Egypt) to the Arabian Peninsula (Board of Trustees, RBG Kew 2019).

Within the UAE, this species is found on inland sand plains and low dunes of the northern Emirates, Abu Dhabi Emirate, Ajman, Dubai, Al Ain and occurs occasionally in wadis of the Hajar Mountains (Jongbloed et al. 2003, Karim and Dakheel 2006, Gallacher and Hill 2005, Gallacher and El-Keblawy 2016). Prosopis cineraria is also reported to occur on offshore islands of the Abu Dhabi Emirate (Sakkir et al. 2017). Globally, the native range of this species includes the Arabian Peninsula, Iran and India (Board of Trustees, RBG Kew 2019).

Within the UAE, this species has been recorded from Al Ain and Sharjah (Jongbloed et al. 2003), in addition to two other scattered localities within the northeast of the country (Sharjah Seed Bank and Herbarium pers. comm. 2019). The estimated EOO of this species is 3,992 km² and it is considered to occur at four locations, based on the most important threat of grazing. Globally, the native range of this species spans across the Sahara, Kenya and India, including the Arabian Peninsula (Board of Trustees, RBG Kew 2019).

Within the UAE, it is widespread across the desert between Ras al Khaimah to Abu Dhabi (Jongbloed et al. 2003). Globally, this species is native to Africa, tropical Asia and temperate Asia (Board of Trustees, RBG Kew 2019).

Plocama aucheri is known to occur in the Hajar Mountains, however it prefers low altitudes, and is considered as rare above c. 700 m and absent above c. 1,100 m (Feulner 2011). It is also recorded from the foot of Jebel Hafeet, where it is thought to be frequent (Perry 2008). Globally, this species is found from the Arabian Peninsula to Pakistan (Board of Trustees, RBG Kew 2019).

This species was first recorded for the the UAE from the Hatta region (as 'Pimipinella schweinfurthii'; Böer and Chaudhary 1999) but does not appear since in the available literature for the country, other than a mention in Jongbloed et al. (2003). Globally, this species occurs in Qatar, the UAE and Oman according to Plants of the World online (Board of Trustees, RBG Kew 2019). It is considered to be extinct in Egypt (Board of Trustees, RBG Kew 2019).

The species was recorded for the UAE (Hatta area) by Böer and Chaudhary (1999). RBG Edinburgh Herbarium holds two specimens of Pimpinella cf. puberula from the UAE; 1. <a href=""http://data.rbge.org.uk/herb/E00648740"">Fujairah Emirate</a> (date palm oasis beside Wadi Seder, between Khatt and Dibba, in an area of steep rocky hills and wadis, however this locality requires confirmation), collected by R.A. Western, 1982; and 2. <a href=""http://data.rbge.org.uk/herb/E00648741"">Wadi al Fay, Hatta</a>, 1984: although the herbarium record cites this for the UAE, the coordinates given (24'° 42' N, 56'° 11' E) are in Oman. The species was also recorded by Karim and Fawzi (2007) from R'as al Khaimah, Khor Fakkan, and from Al Ain. The species has a disjunct temperate Asian distribution that perhaps requires confirmation; known from the Arabian Peninsula and from Central Asia (western China (Xinjiang, Hami), Afghanistan, Kazakhstan, Kyrgyzstan, Pakistan, southern Russia, Tajikistan, Turkmenistan, and Uzbekistan) (Board of Trustees, RBG Kew 2019). The species is also recorded from Iran.

The species is widespread in the southern Hajar Mountains' wadis (Jongbloed et al. 2003) in the UAE but not confirmed for the Ru'us al-Jibal (Feulner 2011). The global range of this species is Asia-Temperate; from Turkey, Lebanon-Syria, the Arabian Peninsula (Saudi Arabia and the UAE) and Gulf States, and east to Iran (Board of Trustees, RBG Kew 2019).

This species is known from the mountains of the eastern UAE, from the Ru'us al-Jibal (occasional) in the north, to the Hajar Mountains (the 'Olive Highlands') in the south, where it is known to favour high elevations, persisting at altitudes above 700 m (Feulner 2014). It is known from a single anomalous low-altitude record in Wadi Wurayah National Park (Wadi Ghayl; Feulner 2016). Globally, this species is known from northeast Africa to Sudan (Board of Trustees, RBG Kew 2019).