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Rubus cubitans

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Rubus cubitans
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Rubus
Species:
R. cubitans
Binomial name
Rubus cubitans
Blanch. 1906

Rubus cubitans, the sprawling dewberry,[1] is a rare North American species of flowering plant in the rose family. It has been found only in the State of Vermont in the northeastern United States.[2]

Rubus cubitans is a trailing biennial with first-year stems running along the surface of the ground. Stems have very few prickles. Leaves are hairless, palmately compound with 5 leaflets. Second-year stems are erect, zigzag branches with trifoliate leaves and an array of flowers at the top. Fruit is black and spherical.[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]

References

[edit]
  1. ^ USDA, NRCS (n.d.). "​Rubus cubitans​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 25 October 2015.
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ Blanchard, William Henry 1906. Torreya 6(7): 148–149
  4. ^ Flora of North America, Rubus Linnaeus, 1754. Bramble