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Annual, herb, to 1.5 m high. Fl. pink-blue-purple-red/white, Jul to Dec. Grey, yellow, brown or black sand or loam, red sandy clay, gravel, laterite, granite, limestone, quartzite. Valleys, riverbanks, swampy areas, breakaways, croplands, disturbed sites, gardens, road verges.
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: Central West Coast, Leeuwin-Naturaliste.
Local Government Areas (LGAs): Albany, Armadale, Augusta-Margaret River, Bunbury, Busselton, Canning, Chittering, Gosnells, Mandurah, Manjimup, Melville, Nedlands, Serpentine-Jarrahdale, Swan.
Alternative Names. Black-pod Vetch, Narrow-leaf Vetch, Subterranean Vetch.
General Biology. Growth form. Herb. Life form. Annual. Reproduction. Seed. Dispersal. Birds, horses, sheep (by ingestion). Seedbank persistence. Some dormancy.
Notes. Can smother native plants. Colonises bare disturbed sites. Moderately salt tolerant. Flowers are hermaphrodite and are pollinated by bees, moths and butterflies. Capable of fixing nitrogen and is adapted to a range of soils but not acidic, poorly-drained soils. Has a rapid growth rate.
Additional information. Origin. North and eastern Africa, temperate and tropical Asia, Europe. History of use/introduction. Cattle forage and grain.
Suggested method of management and control. Hand remove small/isolated populations. Lontrel® 10 mL/10 L + wetting agent provides effective control in early growth stages, otherwise apply metsulfuron methyl 0.1 g/10 L + wetting agent. 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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