Solanum linnaeanum Hepper & P.-M.L.Jaeger
Kew Bull. 41:435 (1986)

Conservation Code: Not threatened
Naturalised Status: Alien to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Friday 26 April 1996

Shrub, 0.6-1.6 m high. Fl. blue-purple, Jan or Mar or May or Aug or Oct. Weed of pastures & roadsides.

Distribution

Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P2, Geraldton Hills, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.

IMCRA Regions: Central West Coast, Leeuwin-Naturaliste.

Local Government Areas (LGAs): Armadale, Augusta Margaret River, Busselton, Cockburn, Collie, Cottesloe, Dardanup, Gosnells, Greater Geraldton, Harvey, Melville, Moora, Nannup, Perth, Rockingham, Serpentine-Jarrahdale, Stirling, Swan, Wanneroo, Waroona.

Management Notes (for the Swan NRM Region)
Kate Brown and Karen Bettink, Monday 26 August 2019

General Biology. Growth form. Shrub. Reproduction. This species reproduces only by seed. Produces approximately 300 berries per plant with 50 seeds per berry resulting in 1,500 seeds per plant.. Dispersal. Fruit may be dragged significant distances when the prickly stems become attached to animals or machinery.. Seedbank persistence. Persistence unknown most seed appears to germinate within a year or two of production..

Notes. Upright or spreading shrub usually growing up to 1.5 m tall. The stems, leaf stalks, both leaf surfaces and flower stalks are all usually armed with stout prickles or spines (3-15 mm long). Alternately arranged leaves (2.5-15 cm long) are usually deeply lobed. Star-shaped purple flowers (15-35 mm across) have five petals. Globular berries (20-35 mm in size) are green with paler green or whitish mottling when young, and turn bright yellow when mature. Does not flower or fruit til 2nd year of growth..

Additional information. Origin. Native to southern Africa.. Similar exotic species. Solanum cinereum and Solanum capsicoides..

Suggested method of management and control. Manually remove and burn isolated plants. Triclopyr (600g/L) Garlon 600® I Cut stump 1L/30L biodiesel or diesel Foliar spray with glyphosate or triclopyr during Autumn and Spring. 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.

Management Calendar

Calendar Type Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Comments
Flowering Y Y                 Y Y  
Fruiting Y Y Y                    
Germination                 Y Y Y    
Dormant         Y Y Y            
Manual Removal Y Y Y Y Y Y Y Y Y Y Y Y  
Herbicide Treatment     Y Y Y       Y Y Y    

Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.

 

References

Project information and acknowledgements