Bursaria spinosa spinosa" was first described by Antonio José Cavanilles in 1797. It is known by many common names, including Australian blackthorn, blackthorn, Christmas bush, mock orange, native blackthorn, native box, native olive, prickly box, prickly pine, spiny box, spiny bursaria, sweet bursaria, thorn box and whitethorn. Summer flowering has given rise to the name (Tasmanian) Christmas bush in Tasmania and South Australia (not to be confused with "Prostanthera lasianthos"). Indigenous names recorded include "kurwan" in Coranderrk, Victoria, and "geapga" from Lake Hindmarsh Station. "Bursaria spinosa" is highly variable in appearance and habit, as are other species within the genus, and there
Prunus persica × Prunus americana tree is included in the Purdue University book "Fruit Breeding", Volume 1. The hybrid at Broadus, Montana has never fruited as the flowerbuds have all winterkilled. The hybrid has bloomed in Pennsylvania and the blooms are sterile. As of 2013, the hybrid near Broadus is still alive. Prunus persica × Prunus americana Prunus persica" × "Prunus americana is the hybrid between the peach "Prunus persica" (often a nectarine) and the wild American plum "Prunus americana". Hybrids were obtained in the 1940s at the University of Minnesota, and have been used in subsequent breeding, such as in the parentage of a