E-Flora BC: Electronic Atlas of the Flora of British Columbia

Rubus laciniatus Willd.
cutleaf evergreen blackberry (cutleaf blackberry; evergreen blackberry)
Rosaceae (Rose family)

Introduction to Vascular Plants

© Jim Riley  Email the photographer   (Photo ID #15482)

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Distribution of Rubus laciniatus
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Species Information

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General:
Medium to tall, coarse shrub, 2-10 m or more long, thicket-forming; stems 3-10 mm in diameter, ascending or arching, then sprawling and trailing along the ground, some rooting at the ends, five-angled, with stout, flattened, hooked prickles along the angles, fine-hairy when young becoming smooth.
Leaves:
Alternate, evergreen, palmately compound; leaflets 5, more or less egg-shaped in outline, deeply and jaggedly lobed to divided into secondary leaflets themselves jaggedly lobed or coarsely toothed, abruptly sharp-pointed at the tip, green and smooth or slightly hairy above, hairy and greyish-green beneath, the leaf-stalks and midveins beneath hooked-prickly; stipules linear.
Flowers:
Inflorescence of few to many, stalked flowers in open, somewhat flat-topped, terminal or sometimes axillary clusters, the stalks curved-prickly and soft-hairy; corollas pinkish to white, the petals 5, spreading, wedge-egg-shaped and 3-lobed at the tip, 9-15 mm long; calyces downy and prickly on the back, 5-lobed, the lobes lanceolate with long tail-like tips, bent back, 8-15 mm long; ovaries superior; stamens 75 or more.
Fruits:
Drupelets, smooth, coherent in a black, globe- to egg-shaped cluster that falls with the fleshy receptacle (a blackberry), the berries 1-1.5 cm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Early Summer
Fruit/Seed characteristics:
Colour: Black
Present from Summer to Fall
Source:  The USDA

Habitat / Range

Moist to wet waste places, ditches and roadsides in the lowland zone; common in SW BC; introduced from Europe.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Rubus laciniatus

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 30 651 1472
Slope Gradient (%) 0 4 25
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
20 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 6
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
15
Modal BEC Zone Class
ICH
All BEC Zones (# of stations/zone) species was recorded in: CDF(2), CWH(1), ESSF(1), ICH(3), MS(1), SBS(1)

Ecological Indicator Information

A shade-intolerant, sub montane to montane, European deciduous shrub introduced to North America (presently transcontinental). Species occurs on water-shedding and water-receiving sites in boreal. temperate, cool semiarid, and cool mesothermal climates; on fresh to very moist, nitrogen-rich soils. Plentiful in initial communities on cutover and burnt sites; scattered in open-canopy, immature forests. Often associated with Epilobium angustifolium, Pteridium aquilinum, and Rubus parviflorus. May hinder natural regeneration, and establishment of shade-intolerant conifers. Nitrophytic species characteristic of disturbed sites.

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is cool mesothermal.

Taxonomic and Nomenclatural Links

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General References