Coleus descampsii (Briq.) A. J. Paton, Phytokeys 129: 40. 2019. ≡ Pycnostachys descampsii Briq., Bull. Soc. Roy. Bot. Belgique 37: 63. 1899. Type: DR. Congo, Katanga, Lufonzo [Lufogo] R., Mar. 1896, G. Descamps s. n. (holotype BR [BR 0000008910042]). Description. Paton et al. (2009: 388), as Pycnostachys descampsii Briq. Distribution. Cameroon to W Tanzania. Habitat and ecology. Savannah, most often on moist, organic soil; 1000–1720 m elev. Additional specimens. DR. Congo, Haut-Katanga, Marungu, 1940, F. Jurion 343 (BR); Kasanga, 23 Mar 1908, T. Kassner 2660 (BR); Territ. des Baanza, sur la Luvua, 18 May 1931, F. Luxen 35 (BR); Environs de Lubumbashi, May 1945, P. Quarré 8012 (BR); Kasambi, 20 Apr 1926, W. Robyns 2037 (BR); Marungu, Kasiki, 12 Jun 1939, P. J. J. Vanden Brande 247 (BR). Note. As already mentioned by Paton et al. (2009) in Tanzania, intermediates exist between C. descampsii and C. parvifolius (e. g. S. Lisowski, F. Malaisse & J. - J. Symoens 11228 (POZG), Kundelungu, 25 Apr 1970).

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