Herrmann, C., Cribb, P. and Demissew, S. (2007) “The Orchid Flora of Benishangul-Gumuz (Western Ethiopia): An Ecological and Phenological Study”, Selbyana, 28(2), pp. 123–136. Available at: https://journals.flvc.org/selbyana/article/view/121234 (Accessed: 2 January 2025).