Rubus recurvicaulis explained

Rubus recurvicaulis is an uncommon North American species of flowering plant in the rose family. It grows in eastern and central Canada (Ontario, Québec, New Brunswick, Nova Scotia, Newfoundland) and the north-central and northeastern United States (Minnesota, Ohio, Pennsylvania, New Jersey, New York, and the 6 New England states).[1] [2] [3]

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.[4] Some studies have suggested that R. recurvicaulis may have originated as a hybrid between R. flagellaris and R. pensilvanicus. [5]

Notes and References

  1. http://bonap.net/MapGallery/State/Rubus%20recurvicaulis.png Biota of North America Program 2014 state-level distribution map
  2. Bailey, Liberty Hyde 1947. Gentes Herbarum; Occasional Papers on the Kinds of Plants 7(3): 275, 278, figure 101
  3. https://www.biodiversitylibrary.org/page/563032#page/191/mode/1up Blanchard, William Henry 1906. Rhodora 8(92): 153–156
  4. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=128837 Flora of North America, Rubus Linnaeus, 1754. Bramble
  5. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242417169 Flora of North America, Rubus pensilvanicus Poiret 1804. Pennsylvania blackberry, ronce de Pennsylvanie