protologue: Revis. Gen. Pl. 3: 33 (1898)
URL protologue: https://archive.org/stream/mobot31753000505435#page/33/mode/2up
6 906591 Sarcocaulon spinosum (Burm.f.) Kuntze [125 463038 Geranium spinosum Burm.f.] J. Burman, Rar. Afric. Pl.: t. 31 (1738)
6 906591 Sarcocaulon spinosum (Burm.f.) Kuntze [125 463038 Geranium spinosum Burm.f.] Trav. Disc. Source Nile (Cartes et figures du Voyage en Nubie et en Abyssinie): t. 14 (1792)
6 906591 Sarcocaulon spinosum (Burm.f.) Kuntze [125 463038 Geranium spinosum Burm.f.] R.J. Gordon, Travels in South Africa (unpublished botanical drawnings): t. 11 (1777)