Rubus nigerrimus

Rubus nigerrimus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Rubus
Species: R. nigerrimus
Binomial name
Rubus nigerrimus
(Greene) Rydb. 1913
Synonyms[1]
  • Melanobatus nigerrimus Greene 1906
  • Rubus hesperius Piper 1897, illegitimate homonym not Rogers 1896
  • Rubus transmontanus Focke
  • Rubus leucodermis var. nigerrimus (Greene) H.St.John

Rubus nigerrimus is rare North American species of brambles in the rose family. It has been found only in the States of Oregon and Washington in the northeastern United States.[2][3]

Rubus nigerrimus is up to 2 meters (80 inches) tall, strongly armed with straight prickles. Leaves are compound with 3 or 5 leaflets. Flowers are white. Fruit almost black, with woolly hairs.[4]

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. ↑ Tropicos, Rubus hesperius Piper
  2. ↑ Biota of North America Program 2014 county distribution map
  3. ↑ Piper, Charles Vancouver. 1897. Erythea 5(10): 103 Rubus hesperius
  4. ↑ Rydberg, Per Axel 1913. North American Flora 22(5): 445 Rubus nigerrimus
  5. ↑ Flora of North America, Rubus Linnaeus, 1754. Bramble


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