Within the UAE, this species is considered to be widespread and is found in Abu Dhabi, Al Ain and R'as al-Khaimah (Brown et al. 2007, Karim and Dakheel 2006). It generally occurs along the Arabian Gulf coast and in the Ru'us al-Jibal (Jongbloed et al. 2003). This plant has been recorded at altitudes up to 1,600 m in the Ru'us al-Jibal (Feulner 2011). Globally, the native range of this species spans from Africa to temperate Asia (Board of Trustees, RBG Kew 2019).

Amaranthus graecizans occurs in coastal areas, as well as Al Ain and offshore islands in the UAE (Jongbloed et al. 2003). MEW (2010) comment that the species is common in coastal areas and also found in moist disturbed areas, suggesting that the species may have been spread by humans within the UAE. It is known to occur within farms in the Liwa area, in addition to localities between Abu Dhabi and Al Ain. Globally, this species occurs in North and Central Africa, southern Europe and the Middle East, and has been widely introduced (Board of Trustees, RBG Kew 2018).

It is widespread within the UAE, occurring in Dubai, Masafi, Fujairah, Al Ain and at Jebel Hafeet (Stuart and Stuart 1998, El Alqamy 2004, Karim and Dakheel 2006). It has also been spread to Abu Dhabi Island. Globally, this species occurs from Africa to Myanmar (Board of Trustees, RBG Kew 2019).

This halophytic species is found in scattered locations throughout the UAE (Jongbloed et al. 2003). The origin of the species in the UAE requires confirmation; whilst GRIN (2019) considers it to be native to the UAE, others consider (Anum et al. 2018, Xu 2019) it to be native to Africa. The global distribution of this species is from Africa to Israel and the Arabian Peninsula, and from Pakistan to India (Board of Trustees, RBG Kew 2019). Globally, it is a widespread introduced ruderal invasive weed of crops and cultivated areas.

This plant species has been recorded from Ras al Khaimah and Arabian Gulf islands, including Das Island (Western 1994, Gillett 2002, Jongbloed et al. 2003, Sakkir et al. 2017). In 2007, one individual was found at Taweela (Brown et al. 2007), although this area has now been lost as a result of development. The species is also scattered across offshore islands, and is thought to be common on Zirku and Arzanah. Further, in 2005 and 2007, this species was reported as being locally common in Al Jazeera al-Hamra (Ra's al-Khaimah). Therefore, it is possible that this plant species is more widespread in disturbed areas along the coastline (Brown et al. 2007). The estimated EOO is around 21,009 km² and it is considered to occur in 5-10 threat-based locations. The AOO has not been calculated as few point data are available, but is estimated to be very much less than 2,000 km² and inferred to be undergoing a continuing decline as a result of development. The global distribution of this species includes Europe, Africa and Asia-Temperate (Board of Trustees, RBG Kew 2018).

According to Jongbloed et al. (2003), this is a common and widespread species in the eastern parts of the UAE. However, Brown et al. (2007) also registered it in Taweela (Abu Dhabi Emirate) and for this reason, they suggest that the distribution of this species should be extended further southwest to Abu Dhabi Island. Furthermore, the species is common on the plains at the base of Jebel Hafeet (Brown et al. 2007), and at Al Ain, Dubai and Shwayb (Karim and Dakheel 2006). The species is present in the south-west of the Ru'us al-Jibal, at low elevations (Feulner 2011). This species is globally distributed in Macaronesia, North Africa to Pakistan and South Africa (Board of Trustees, RBG Kew 2018).

Within the UAE, this species has been recorded from the Ru'us al-Jibal, but elsewhere, there are only two other records from the Hajar Mountains, within the Wadi Wurayah National Park (Feulner 2016). It is considered to generally inhabit low-medium elevations (Feulner 2011). Globally, the native range of this species spans from Macaronesia and the Mediterranean, through northern Africa and northeast tropical Africa, to the Arabian Peninsula and Iran (Board of Trustees, RBG Kew 2019).

Within the UAE, this species occurs in the Hajar Mountains and the Ru'us al-Jibal (Jongbloed et al. 2003). It is known to occur at high elevations within its range, up to 1,700 m (Feulner 2011). The native range of this species spans from the eastern Mediterranean to the Arabian Peninsula and western Himalayas (Board of Trustees, RBG Kew 2019).

Within the UAE, this species is widespread in the Hajar Mountains and the Ru'us al-Jibal (Jongbloed et al. 2003, MEW 2010). It can be found at altitudes up to and above 1,000 m (Feulner 2011). Globally, this species' native range extends from Macaronesia to Europe, the Arabian Peninsula and Iran (Board of Trustees, RBG Kew 2019).

The subspecies Senecio glaucus coronopifolius occurs within the UAE (Jongbloed et al. 2003, Norton et al. 2009). This plant is considered to be widespread within both coastal and montane areas of the northern UAE (G.R. Feulner, in lit, MEW 2010). It is known to occur at Taweela (Brown et al. 2007) in addition to the Ru'us al-Jibal, where it ranges from 250 m altitude to 1,600 m (G.R. Feulner, in litt, MEW 2010, Feulner 2011). Globally, this species ranges from northern Africa to the Arabian Peninsula and Afghanistan (Board of Trustees, RBG Kew 2019).