| Brazil | | | Burkart, A. | 1955 | Especies de Trifolium, nuevas como adventicias en el sur de Argentina, Chile y Uruguay | Darwiniana | 11(1): 133–138 |
| Brazil | Rio Grande do Sul | | Burkart, A. | 1955 | Especies de Trifolium, nuevas como adventicias en el sur de Argentina, Chile y Uruguay | Darwiniana | 11(1): 133–138 |
| Canada | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| Chile | | | Burkart, A. | 1955 | Especies de Trifolium, nuevas como adventicias en el sur de Argentina, Chile y Uruguay | Darwiniana | 11(1): 133–138 |
| Chile | | | Marticorena, C. F. S. & M. Quezada | 1985 | Catálogo de la Flora Vascular de Chile | Gayana, Bot. | 42: 1–157 |
| China | Hebei | | Flora of China Editorial Committee | 2010 | Flora of China (Fabaceae) | Fl. China | 10: 1–642 |
| China | Jiangsu | | Flora of China Editorial Committee | 2010 | Flora of China (Fabaceae) | Fl. China | 10: 1–642 |
| China | Shaanxi | | Flora of China Editorial Committee | 2010 | Flora of China (Fabaceae) | Fl. China | 10: 1–642 |
| Sri Lanka | | | Rudd, V. E. | 1980 | Fabaceae, subfamily Faboideae, tribe Sophoreae, tribe Abreae, tribe Trifolieae, tribe Vicieae A Revised Handbook to the Flora of Ceylon | | 1: 428–458 |
| United States | | | Turner, B. L. | 1959 | The Legumes of Texas Univ. of Texas Press, Austin | | 284 pp |
| United States | | | Godfrey, R. K. & R. D. Kral | 1958 | Observations on the Florida flora | Brittonia | 10(4): 166–177 |
| United States | | | Thompson, R. L. | 1979 | Vascular flora of Cedar Gap Lake and environs, Webster and Wright Counties, Missouri | Sida | 8(1): 71–89 |
| United States | | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | | | Henry, R. M. & A. R. Scott | 1986 | Distributional additions for some Illinois vascular plants | Phytologia | 60: 159–170 |
| United States | | | Correll, D. S. & M. C. Johnston | 1970 | (none) | Man. Vasc. Pl. Texas | i–xv, 1–1881 |
| United States | | | Voss, E. G. | 1985 | Michigan Flora. Part II Dicots (Saururaceae-Cornaceae) | Bull. Cranbrook Inst. Sci. | 59. xix + 724 |
| United States | California | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | Florida | | Godfrey, R. K. & R. D. Kral | 1958 | Observations on the Florida flora | Brittonia | 10(4): 166–177 |
| United States | Georgia | | Godfrey, R. K. & R. D. Kral | 1958 | Observations on the Florida flora | Brittonia | 10(4): 166–177 |
| United States | Illinois | | Henry, R. M. & A. R. Scott | 1986 | Distributional additions for some Illinois vascular plants | Phytologia | 60: 159–170 |
| United States | Kansas | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| United States | Michigan | | Voss, E. G. | 1985 | Michigan Flora. Part II Dicots (Saururaceae-Cornaceae) | Bull. Cranbrook Inst. Sci. | 59. xix + 724 |
| United States | Minnesota | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| United States | Missouri | | Thompson, R. L. | 1979 | Vascular flora of Cedar Gap Lake and environs, Webster and Wright Counties, Missouri | Sida | 8(1): 71–89 |
| United States | Nebraska | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| United States | North Carolina | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | North Dakota | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| United States | South Carolina | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | Texas | | Turner, B. L. | 1959 | The Legumes of Texas Univ. of Texas Press, Austin | | 284 pp |
| United States | Texas | | Correll, D. S. & M. C. Johnston | 1970 | (none) | Man. Vasc. Pl. Texas | i–xv, 1–1881 |