Coleus hadiensis (Forssk.) A. J. Paton, Phytokeys 129: 54. 2019. ≡ Plectranthus hadiensis (Forssk.) Schweinf. ex Sprenger, Wiener Ill. Gart. - Zeitung 19: 2. 1894. Type: Yemen, in montibus Hadiensis [Hadiyah], 1763, P. Forsskål 348 (holotype C [C 10002654]). = Plectranthus zatarhendii sensu Troupin & Ayob., Fl. Rwanda 3: 340. 1985., non (Forsskal) E. A. Bruce. = Plectranthus fragrans Lebrun & L. Touss., Bull. Jard. Bot. État Bruxelles 17: 70. 1943. Type: DR. Congo, Katanda, Sep. 1937. J. Lebrun 7618 (holotype BR [BR 0000006262556]; isotype K, P). Description. Paton et al. (2009: 300), Paton et al. (2013: 247), as Plectranthus hadiensis (Forssk.) Sprenger. Distribution. Widespread, Egypt to South Africa, Arabian Peninsula, Maldives, Sri Lanka. Habitat and ecology. Savannah, xerophilous scrub, woodland, rocks; 950–2150 m elev. Additional specimens. DR. Congo, Lacs Edouard et Kivu, Beni, Kasindi, 10 Aug 1914, J. Bequaert 5233 (BR); Katanda, Aug 1937, J. Lebrun 7589 (BR); Katanda, Sep. 1937, J. Lebrun 7618 (BR); Ruindi, 1937, J. Lebrun 7933 (BR, YBI); Escarpement de Kabasha, 7 Dec 1934, G. F. de Witte 2172 (BR); Lac Edouard, baie de Kabale, 24 Dec 1953, D. van der Ben 972 (BR). Rwanda, Ibere Rya Bigogwe, 8 Feb 1984, F. - X. Ayobangira 1673 (BR); Bugesera, env. Karama, 12 Mar 1972, G. Bouxin 1365 (BR); Mayaga, 27 May 1954, L. Liben 1202 (BR); Mutara, env. Gabiro, 5 Apr 1957, G. Troupin 3123 (BR); Akagera, Lac Ihema, 1 May 1973, G. Troupin 15042 (BR). Note. In the Flore du Rwanda (Troupin and Ayobangira 1985), C. hadiensis is erroneously referred to as Plectranthus zatarhendii, a species absent from Central Africa.

Published as part of Meerts, Pierre J. & Paton, Alan J., 2024, The genus Coleus (Lamiaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi), with the description of 15 new species, pp. 71-178 in PhytoKeys 246 on pages 71-178, DOI: 10.3897/phytokeys.246.129476