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Flora of Scotts Creek Watershed

Growth Form Bush In Flower Stem With Prickles Leaves Flower1 Flower2

Rubus ursinus - California Blackberry

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Family Name: Rosaceae

Common Names: California Blackberry, Pacific Blackberry

Origin: Native to California

Habitat: Common to many localities. Moist places, shrubland, streamsides, forests, woodlands, and open habitats, below 5000 ft.

Life Form and Duration: Perennial Trailing/clambering vine, 1-6 m tall

Bark and Stem Description: Stems are round, prickles are slender and straight.

Foliage Type: Semideciduous

Foliage Description: Palmately lobed or compound, 3 lobes or leaflets (rarely 5). 2-10 cm long, terminal leaflet larger than laterals, irregularly toothed margin, lower surfaces can be hairy or hairless but are light green.

Infloresence Description: 2-15 flowers in a cyme (branched inflorescence)

Flower Description: Plants are dioecious, pistillate and stamiate flowers on separate plants. Petals are white. Pistillate flowers with many long pistils and shorter stamens, anthers absent or aborted. Staminate flowers lack pistils and have narrower petals than those of pisitilate flowers. Gland tipped hairs on stem and sepals.

Flowering Season: April-August

Fruit Type: Aggregate (cluster of drupelets originating from many separate pistils in a single flower)

Fruit Description: A shiny black to purple berry at maturity, oblong to spherical, remains attached to the receptacle when picked.

Edibility: Edible, can be quite tasty and sweet.