Low, straggling, tangled shrub or climber (with almost prostrate canes), to 5 m high. Fl. white, Dec. Brown clay loam, red sandy loam, gravel, laterite, granite. Along creeklines, in disturbed ground.
Alternative Names. Boysenberry, Loganbeere, tayberry.
General Biology. Growth form. Shrub. Reproduction. Seed, stem layering, suckering. Dispersal. Birds, foxes, other mammals, garden refuse. Vegetative regeneration strategy. Resprouts, produces root suckers, stem layering. Seedbank persistence. Unknown for this species, however seed dormancy and vaiblility is highly variable within Rubus, all species have some dormancy.
Notes. In 2004/2005 herbarium collections of blackberry were made across the state as part of a NRM project to determine the overall distribution and incidence of weedy blackberry taxa. It identified WA has several weedy Rubus species, with no native Rubus species. R. loganobaccus was located near Pemberton. Of hybrid origin. Is a naturalised American cultivar derived from raspberry x blackberry hybrids, presumably R. idaeus x R. ursinusIs. For further information on identification refer to Barker and Barker (2005) Blackberry: an identification tool to introduced & native Rubus in Australia [CD-ROM] or CSIRO (2005) Field guide for the identification of WA blackberry.
Additional information. Origin. Only cultivated, originating from cultivar in California. History of use/introduction. Likely escapee from local hobby/berry farms. Has edible fruits. Genetic source for blackberry cultivars. Similar exotic species. R. anglocandicans, R. ulmifolius.
Suggested method of management and control. Spray with metsulfuron methyl 1 g/10 L + the wetting agent Endose® at 30 ml/10 L, in summer-autumn. Will require follow up for a number of years. For small infestations or in sensitive areas hand pull small plants or seedlings. For larger plants cut and paint with 20-50% glyphosate or slash canes. Spray regrowth at 50cm with metsulfuron methyl 1 g/10 L + the wetting agent Endose® at 30 ml/10 L, in summer-autumn. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.
Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.