Rubus allegheniensis Porter
Alleghaney blackberry (Allegheny blackberry; Prairie Rose)
Rosaceae (Rose family)
Introduction to Vascular Plants
Alleghaney blackberry (Allegheny blackberry; Prairie Rose)
Rosaceae (Rose family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Rubus allegheniensis var. allegheniensis
Species Information
General:
Medium to tall shrub, 0.5-3 m tall; stems 5-15 mm in diameter, erect to ascending, with stout, flattened, straight prickles.
Leaves:
Alternate, deciduous, palmately compound; leaflets 5, oblong-egg-shaped, 7-20 cm long, finely saw-toothed and long-tapering to a sharp-pointed tip, the leaf-stalks soft-hairy, glandular and hooked-prickly.
Flowers:
Inflorescence of many stalked flowers in an open, long, raceme-like cluster, the stalks fine-woolly and glandular; corollas white, the petals 5, spreading, egg-shaped, 5-10 mm long; calyces woolly, 5-lobed, the lobes lanceolate, bent back; ovaries superior; stamens numerous.
Fruits:
Drupelets, coherent in a black oblong cluster that falls with the fleshy receptacle (a blackberry), the berries about 2 cm long.
USDA Species Characteristics
Flower Colour:
White
Blooming Period:
Mid Spring
Fruit/Seed characteristics:
Colour: Black
Present over the Summer
Source: The USDA
Ecology
Ecological Framework for Rubus allegheniensis
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)
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 |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
210 | 210 | 210 |
| Slope
Gradient (%) |
7 | 7 | 7 |
|
Aspect (degrees) |
225 | 225 | 225 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
|||
| Modal
Nutrient Regime
Class |
|||
| #
of field plots species was recorded in: |
1 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(1) | ||
|
Source:
Klinkenberg 2013
|
|||