Briza maxima L.
Blowfly Grass

Sp.Pl. 1:70 (1753)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status

Tufted, glabrous annual, grass-like or herb, 0.2-0.6 m high. Fl. green-purple, Sep to Oct. Sand, loam, clay.

Grazyna Paczkowska, Descriptive Catalogue, 30 October 1993


IBRA Regions
Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions
Dandaragan Plateau, Fitzgerald, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
IMCRA Regions
Central West Coast, WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Augusta Margaret River, Beverley, Boyup Brook, Bridgetown-Greenbushes, Broomehill-Tambellup, Bruce Rock, Busselton, Canning, Capel, Chapman Valley, Chittering, Cockburn, Collie, Coorow, Cranbrook, Cuballing, Cunderdin, Dalwallinu, Dandaragan, Dardanup, Denmark, Donnybrook-Balingup, Dowerin, Esperance, Gingin, Goomalling, Gosnells, Greater Geraldton, Jerramungup, Joondalup, Kalamunda, Kellerberrin, Kondinin, Kulin, Kwinana, Mandurah, Manjimup, Melville, Merredin, Mundaring, Murray, Narrogin, Nedlands, Northam, Northampton, Perth, Pingelly, Plantagenet, Ravensthorpe, Rockingham, Serpentine-Jarrahdale, Stirling, Swan, Toodyay, Victoria Plains, Wagin, Wandering, Wanneroo, Waroona, West Arthur, Wickepin, Williams, Wongan-Ballidu, Woodanilling, Wyalkatchem, York.

Management Notes (for the Swan NRM Region)

Alternative Names. Big quaking grass, great quaking grass.

General Biology. Growth form. Grass. Life form. Annual, caespitose. Reproduction. Seed. Dispersal. Water, wind, mammals, slashing. Photosynthetic Pathway. C3. Seedbank persistence. Medium, up to 3 years. Fire response. Fire promotes germination of soil-stored seed.

Notes. Cultivated and naturalised in the British Isles, New Zealand, United States, Central and South America and Hawaii. Germination of seed is not affected by light and increases after 10 days to 6 months of after-ripening.

Additional information. Origin. North Africa, temperate western Asia, southeastern and southwestern Europe. History of use/introduction. Seed contaminant in crops, ornamental.

Suggested method of management and control. Prevent seed set. Hand pull or spray at 3-5 leaf stage with Fusilade® Forte at 16 ml/10 L or 800 ml/ha (based on 500 L water/ha) + wetting agent or for generic fluazifop-p (212g/L active ingredient) 10ml/10L or 500ml/ha + wetting agent. Repeat treatment for 2 - 3 years. 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
Active Growth       O Y Y Y Y          
Germination         Y Y Y Y          
Flowering               Y Y Y      
Fruiting                   Y Y Y  
Optimum Treatment           O Y Y O        

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



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