Clemens - 547 - United States

Correll - 27160 - United States

Little - 36030 - United States

Martens - s.n. - United States

Nee - 61324 - United States

Palmer - 12542 - United States

Palmer - 31942 - United States

Palmer - 41982 - United States

Prunus virginiana

Raunikar - 84 - United States

Stevens - 312 - United States