Checklist » Rosaceae » Rubus ursinus
Last updated 4/19/2020 by David Giblin.
Rubus ursinus Cham. & Schltdl.[FNA9, HC, HC2]
Pacific blackberry, trailing blackberry, dewberry, Douglasberry

Publication: Linnaea 2: 11. 1827.

Origin: Native

selected vouchers: WTU

Notes: Draft FNA9: "Rubus ursinus is often reminiscent in habit of the predominantly eastern North American but non-sympatric R. flagellaris, and is likewise polymorphic. Of agricultural significance, R. ursinus is a parent of several important cultivars, including loganberry and boysenberry.

See discussion under Rubus flagellaris for the superficially similar R. caesius. See discussion under R. spectabilis for the application of the name R. menziesii."

References: (none)

Synonyms & Misapplied Names:
Rubus eastwoodianus Rydb.
Rubus helleri Rydb.
Rubus macropetalus Douglas ex Hook.
Rubus ursinus Cham. & Schltdl. ssp. macropetalus (Douglas ex Hook.) Roy L. Taylor & MacBryde
Rubus ursinus Cham. & Schltdl. var. eastwoodianus (Rydb.) J.T. Howell
Rubus ursinus Cham. & Schltdl. var. macropetalus (Douglas ex Hook.) S.W. Br.[HC]
Rubus vitisolius ssp. ursinus Abrams