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 alleghaniensis bark is fissured in older specimens. The flowers are plentiful and white, eventually turning pink. The dark reddish purple fruit is half an inch (13 mm) wide, with a whitish bloom. "Prunus alleghaniensis" is not common in moist woodlands. It is typically found in elevations between . Prunus alleghaniensis Prunus alleghaniensis, the Allegheny plum, is a species of New World plum, native to the Appalachian Mountains from New York to Kentucky and North Carolina, plus the Lower Peninsula of Michigan. There are old reports of it growing also in New Jersey and Connecticut, but it now appears to have been