| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Kansas | e. | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Missouri | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Oklahoma | e. | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Wisconsin | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Connecticut | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Indiana | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Massachusetts | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Michigan | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Hampshire | s.w. | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New York | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Ohio | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Pennsylvania | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Rhode Island | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Vermont | s.e. | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | West Virginia | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Baja California (Norte) | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Baja California Sur | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Chihuahua | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Durango | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Sinaloa | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Sonora | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Tamaulipas | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Zacatecas | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | New Mexico | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Arkansas | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Florida | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Georgia | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Kentucky | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Louisiana | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Maryland | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Mississippi | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | North Carolina | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | South Carolina | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Tennessee | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Virginia | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Campeche | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Chiapas | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guerrero | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Jalisco | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Michoacán de Ocampo | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Nayarit | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Oaxaca | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Querétaro | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Quintana Roo | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Tabasco | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Yucatán | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Arizona | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Aruba | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Bahamas | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Cuba | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Grenada | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Guadeloupe | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Hispaniola | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Jamaica | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Netherlands Antilles | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | St. Kitts and Nevis | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | St. Vincent and Grenadines | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | United States | Puerto Rico | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | United States | Virgin Islands, U.S. | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Caribbean | Virgin Islands (British) | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | Belize | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | Costa Rica | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | El Salvador | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | Guatemala | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | Honduras | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | Nicaragua | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Central America | Panama | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Northern South America | Venezuela | Distrito Capital | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Northern South America | Venezuela | Falcón | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Northern South America | Venezuela | Lara | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Northern South America | Venezuela | Miranda | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Northern South America | Venezuela | Nueva Esparta | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Southern South America | Argentina | Jujuy | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Southern South America | Argentina | Salta | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Western South America | Colombia | | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Western South America | Ecuador | Guayas | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Western South America | Ecuador | Loja | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Western South America | Peru | Piura | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |
| 1 | Native | Southern America | Western South America | Peru | Tumbes | | Irwin, H. S. & R. C. Barneby. 1982. The American Cassiinae: a synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. Mem. New York Bot. Gard. 35:832-843. |