California Blackberry (Rubus ursinus) Login         


        Description
  • Height 3 - 6 ft.
  • EW Bloom Apr - Jun
  • This shrub forms an impenetrable thicket of branches, full of narrow prickles.
  • You'll notice bright white flowers with many stamens.
  • Found in canyons, coastal stream banks and disturbed areas
  • CA native
  • AKA Pacific Blackberry
  • Rose Family (Rosaceae)



Separate petals, with green leafy sepals in between. This male flower has many stamens.



Prickles are short, narrow, and plentiful. Himalayan Blackberry has wider, longer, and less densely-packed prickles.



Red fruit turns black with maturity. Leaves in 3s, coarsely toothed, are hairy and have spines. Veins are indented on the leaves.

   Photo Gallery (79 ) click any picture to enlarge
    

Blackberry leaves are typically in 3s, as are Poison Oak's. However, blackberry leaves are hairy and spiny, while PO leaves are not.

Leaves have spines along the bottom of their mid vein. Their undersides are somewhat lighter green than on top. The similar Himalayan Blackber ...

Stems are round in cross section. First-year stems grow from buds at or below the ground, and produce only leaves. In the second year, lateral b ...

California Blackberry prickles pictured here are thin, round in cross section, and densely arrayed. Himalayan Blackberry prickles have wider bases ...

California Blackberries are [[dioecious]], which means "two houses." Each plant has either male or female flowers. This is a female flower. At fi ...