Bush - s.n. - United States
Bussmann - 17744 - Peru
Danin - s.n. 1977 - Nicaragua
Davidse - 38015 - United States
Engelmann - s.n. - United States
Gaumer - 1001 - Mexico
Gaumer - 517 - Mexico
Hammel - 12058 - Costa Rica
Hinton - 23017 - Mexico
Huanca - 115 - Bolivia
Kotschy - 266 - Sudan
Monigatti - 138 - Peru
Oliveira - 449 - Brazil
Portulaca oleracea
Schimper - 724 -
Stevens - 16713 - Nicaragua
Wright - 21 - United States
Yatskievych - 91-173 - United States
Zander - s.n. - United States