Rubus tholiformis

Rubus tholiformis is a rare North American species of flowering plant in the rose family. It has been found only in eastern Canada (Québec and Nova Scotia) and the northeastern United States (Maine, New Hampshire, Vermont).[2][3][4]

Rubus tholiformis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Rubus
Species:
R. tholiformis
Binomial name
Rubus tholiformis
Synonyms[1]
  • Rubus spiculosus Fernald

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] Some studies have suggested that R. tholiformis may have originated as a hybrid between R. setosus and R. hispidus.[6]

References

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