Bornmüller - 2865 - Canary Islands
Clemens - 11443 - United States
Cook - 647 - Canary Islands
Correll - 39112 - United States
Crutchfield - 1226 - United States
Crutchfield - 1673 - United States
Crutchfield - 1695 - United States
Crutchfield - 1713 - United States
Crutchfield - 375 - United States
Drège - 8801 - South Africa
Gelert - s.n. - Canary Islands
Hadidi - s.n. - Egypt
Hall - 619 - United States
Holmes - 7230 - United States
Joor - s.n. - United States
Mkeya - 889 - Tanzania
Pappi - 1516 - Eritrea
Powell - 3617 - United States
Razakamalala - 7851 - Madagascar
Reverchon - 4041 - United States
Reverchon - s.n. - United States
Ricketson - 4999 - United States
Stevens - 313 - United States
Stevens - 363 - United States
Tharp - s.n. - United States
Tracy - 252 - United States
Zannichellia palustris