Rubus alumnus

Rubus alumnus, the oldfield blackberry,[2] is a North American species of flowering plant in the rose family. It is native to eastern and central Canada (Ontario, Québec, Nova Scotia) and the eastern and central United States (from Maine south to North Carolina and west as far as Oklahoma, Kansas, and Minnesota).[3][4]

Rubus alumnus
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Rubus
Species:
R. alumnus
Binomial name
Rubus alumnus
Synonyms[1]
Synonymy
  • Rubus apianus L.H.Bailey
  • Rubus barbarus L.H.Bailey
  • Rubus bellobatus L.H.Bailey
  • Rubus campester L.H.Bailey
  • Rubus corei L.H.Bailey
  • Rubus facetus L.H.Bailey
  • Rubus fernaldianus L.H.Bailey
  • Rubus impos L.H.Bailey
  • Rubus independens L.H.Bailey
  • Rubus licitus L.H.Bailey
  • Rubus miriflorus L.H.Bailey
  • Rubus ostryifolius Rydb.
  • Rubus parcifrondifer L.H.Bailey
  • Rubus pubifolius L.H.Bailey
  • Rubus tennesseanus L.H.Bailey

The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.[5]

References
  1. The Plant List, Rubus alumnus L.H.Bailey
  2. USDA, NRCS (n.d.). "Rubus alumnus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 24 October 2015.
  3. Biota of North America Program 2014 county distribution map
  4. Bailey, Liberty Hyde. 1941. Gentes Herbarum; Occasional Papers on the Kinds of Plants 5(1): 82–84, figure 28
  5. Flora of North America, Rubus Linnaeus, 1754. Bramble
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