| Peru | | | Macbride, J. F. | 1949 | Geraniaceae, Flora of Peru | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/2): 511–544 |
| Peru | Cusco | | Macbride, J. F. | 1949 | Geraniaceae, Flora of Peru | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/2): 511–544 |
| Peru | Lima | | Macbride, J. F. | 1949 | Geraniaceae, Flora of Peru | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/2): 511–544 |
| Peru | Loreto | | Macbride, J. F. | 1949 | Geraniaceae, Flora of Peru | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/2): 511–544 |
| 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 | | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | California | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |
| United States | California | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | California | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |