Rubus macropetalus

California Blackberry

a perennial woody deciduous member of the Rubus genus in the family Rosaceae.

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Taxonomy and growth

Family
Rosaceae
Genus
Rubus
Life cycle
perennial
Foliage
deciduous
Woodiness
woody
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Fruit - raw or cooked[8][2][7]. It can also be dried for later use[4]. The fresh or dried leaves can be used to make a tea[7].

Plant part
Fruit
Product or use
Tea

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

An infusion of the leaves has been used in the treatment of stomach complaints[7].

Product or use
Stomachic

Material uses

This section contains historical Plants For A Future notes marked noncommercial.

A purple to dull blue dye is obtained from the fruit[5].

Product or use
Dye

Environment

Range
Western N. America - British Columbia to California.
Habitat
Field banks and disturbed areas below 1300 metres in California[8].
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - requires stratification and is best sown in early autumn in a cold frame. Stored seed requires one month stratification at about 3°c and is best sown as early as possible in the year. Prick out the seedlings when they are large enough to handle and grow on in a cold frame. Plant them out into their permanent positions in late spring of the following year. Cuttings of half-ripe wood, July/August in a frame[6]. Tip layering in July. Plant out in autumn. Division in early spring or just before leaf-fall in the autumn[6].

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Easily grown in a good well-drained loamy soil in sun or semi-shade[1][3][6]. Sometimes cultivated for its edible fruit, there are some named forms[8]. Plants in this genus are notably susceptible to honey fungus[6].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

  2. Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00

  3. Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981-00-00

  4. Gunther. E. Ethnobotany of Western Washington. University of Washington Press 1981-00-00 ISBN 0-295-95258-X

  5. Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. 1974-00-00 ISBN 0-02-544950-8

  6. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

  7. Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998-00-00 ISBN 0-88192-453-9

  8. Munz. A California Flora. University of California Press 1959-00-00

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