Taxon: Rubus ursinus Cham. & Schltdl.

Genus: Rubus
  Subgenus: Rubus
    Section: Ursini
Family: Rosaceae
  Subfamily: Rosoideae
      Tribe: Rubeae
Nomen number: 32482
Place of publication: Linnaea 2:11. 1827
Comment: the first author to unite R. ursinus and R. vitifolius, two names of equal priority, seems to have been Brewer & Watson (in Bot. California 1:172-173. 1876), who chose R. ursinus (Melbourne ICN Art. 11.5)
Name Verified on: 09-Dec-1999 by ARS Systematic Botanists. Last Changed: 21-Jan-2014
Species priority site is: Natl. Germplasm Repository - Corvallis (COR)
Accessions: 83 in National Plant Germplasm System (GoogleMap)

Common names:

  • California blackberry  (Source: F CalifJep) - English
  • California dewberry  (Source: Cornucopia) - English
  • Douglas-berry  (Source: F Pacif NW) - English
  • Pacific blackberry  (Source: Dict Rehm) - English
  • Pacific dewberry  (Source: Hortus 3) - English

Economic Importance:

  • Harmful organism host: crop diseases (fide Virus Diseases)
  • Harmful organism host: crop pests (fide Virus Diseases)
  • Human food: fruit (fide L Edible Pl; Cornucopia)
  • Gene sources: crop quality for blackberry (fide F CalifJep; F Pacif NW)
  • Gene sources: primary genetic relative of blackberry (based on crosses with cultivated blackberry fide HortSci 45:434. 2010)
  • Gene sources: primary genetic relative of red raspberry (based on fertile hybrids with red raspberry fide Breeders Rubus)
  • Weed: (fide F Pacif NW)

Distributional Range:


  • Northern America

    • Northern Mexico: Mexico - Baja Norte
    • Northwestern U.S.A.: United States - Idaho, - Oregon, - Washington
    • Southwestern U.S.A.: United States - California
    • Western Canada: Canada - British Columbia


  • Clark, J. R. et al. 2007. Chapter 2. Blackberry breeding and genetics Pl. Breed. Rev. 29:19-144.
  • Converse, R. H., ed. Virus diseases of small fruits. USDA Agriculture Handbook 631. 1987 (Virus Diseases)
  • Douglas, G. W. et al., eds. The vascular plants of British Colombia. 1994 (F BritCol)
  • Encke, F. et al. Zander: Handwörterbuch der Pflanzennamen, 13. Auflage. 1984 (Zander ed13)
  • Facciola, S. Cornucopia, a source book of edible plants. 1990 (Cornucopia)
  • Finn, C. E. et al. 2010. "Wild treasure" thornless trailing blackberry (HortScience) 45:434-436.
  • Finn, C. E. et al. 2010. "Wild treasure" thornless trailing blackberry (HortScience) 45:434-436.
  • Finn, C. et al. 2001. Breeders experiences with Rubus species (Breeders Rubus)
  • FNA Editorial Committee Flora of North America. 1993- (F NAmer)
  • Hickman, J. C., ed. The Jepson manual: higher plants of California. 1993 (F CalifJep)
  • Hitchcock, C. L. et al. Vascular plants of the Pacific Northwest. 1955-1969 (F Pacif NW)
  • Huxley, A., ed. The new Royal Horticultural Society dictionary of gardening. 1992 (Dict Gard)
  • IPGRI New World Fruits Database (on-line resource). (New World Fruits)
  • Kunkel, G. Plants for human consumption. 1984 (L Edible Pl)
  • Liberty Hyde Bailey Hortorium Hortus third. 1976 (Hortus 3)
  • Markle, G. M. et al., eds. Food and feed crops of the United States, ed. 2. 1998 (Food Feed Crops US)
  • Moerman, D. Native American ethnobotany, ed. 5. 1998 (Nat Amer Ethnobot)
  • Munz, P. A. A flora of southern California. 1974 (F SCalif)
  • Munz, P. A. & D. D. Keck A California flora. 1959 (F CalifMunz)
  • Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource). (Pl Names)
  • Rehm, S. Multilingual dictionary of agronomic plants. 1994 (Dict Rehm)
  • Scoggan, H. J. The flora of Canada, 4 vol. 1978-1979 (F Canada)
  • Thompson, M. N. 1995. Chromosome numbers of Rubus cultivars at the National Clonal Germplasm Repository (HortScience) 30:1453-1456.
  • Walters, S. M. et al., eds. European garden flora. 1986- (Eur Gard F)
  • Wiggins, I. L. Flora of Baja California. 1980 (F Baja)

Check other web resources for Rubus ursinus Cham. & Schltdl. :