| Ecuador | Bolívar | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Bolívar | | Eliasson, U. H. | 1996 | 38. Aizoaceae | Fl. Ecuador | 55: 14–27 |
| Ecuador | Chimborazo | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Chimborazo | | Eliasson, U. H. | 1996 | 38. Aizoaceae | Fl. Ecuador | 55: 14–27 |
| Ecuador | Pichincha | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Pichincha | | Eliasson, U. H. | 1996 | 38. Aizoaceae | Fl. Ecuador | 55: 14–27 |
| Ecuador | Tungurahua | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Tungurahua | | Eliasson, U. H. | 1996 | 38. Aizoaceae | Fl. Ecuador | 55: 14–27 |
| Mexico | | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |
| South Africa | | | Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas | 1987 | List of species of southern African plants | Mem. Bot. Surv. South Africa | 2(1–2): 1–152(pt. 1), 1–270(pt. 2) |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | | | Munz, P. A. | 1974 | (none) | Fl. S. Calif. | 1–1086 |
| United States | | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |
| United States | California | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | California | | Munz, P. A. | 1974 | (none) | Fl. S. Calif. | 1–1086 |
| United States | California | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |