Bush - 1402 - United States
Bush - 903 - United States
Bush - s.n. - United States
Bussmann - 17744 - Peru
Danin - s.n. 1977 - Nicaragua
Davidse - 38015 - United States
Engelmann - s.n. - United States
Freeman - 17799 - United States
Gaumer - 1001 - Mexico
Gaumer - 517 - Mexico
Hammel - 12058 - Costa Rica
Hinton - 23017 - Mexico
Huanca - 115 - Bolivia
Kotschy - 266 - Sudan
Mackensen - 9 - United States
Monigatti - 138 - Peru
Oliveira - 449 - Brazil
Portulaca oleracea
Reverchon - 2323 - United States
Rossbach - 3764 - Costa Rica
Schimper - 724 - Egypt
Stevens - 16713 - Nicaragua
Turner - 17-079 - United States
Waugh - 165 - United States
Wright - 21 - United States
Yatskievych - 91-173 - United States
Zamora Villalobos - 8689 - Costa Rica
Zander - s.n. - United States