Creeping or scrambling perennial, herb, to 0.5 m high. Fl. blue, Jan to Dec. Cultivated & naturalised in disturbed areas.
Beard’s Provinces: South-West Province.
IBRA Regions: Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions: Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.
IMCRA Regions: WA South Coast.
Local Government Areas (LGAs): Albany, Armadale, Augusta-Margaret River, Bridgetown-Greenbushes, Capel, Dardanup, Donnybrook-Balingup, Harvey, Kalamunda, Manjimup, Murray, Rockingham, Serpentine-Jarrahdale, Waroona, Williams.
Alternative Names. Large Periwinkle, Greater Periwinkle.
General Biology. Growth form. Herb. Life form. Perennial. Reproduction. Stem fragments, stolons. Dispersal. Soil, machinery, water. Seedbank persistence. Seed rarely matures.
Additional information. Origin. Mediterranean.
Suggested method of management and control. Hand pull small infestations, being careful not to leave stem fragments behind. Spray larger areas with 2 % glyphosate + Pulse® 2 mL/L; spray when plants have approximately 5 cm new growth in 8-12 weeks - repeat applications will be required. 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.
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/