Tufted annual, grass-like or herb, 0.15-0.3 m high. Fl. green, Jul to Nov. Sand, sandy clay. Roadsides, disturbed areas.
Beard’s Provinces: Eremaean Province, South-West Province.
IBRA Regions: Avon Wheatbelt, Coolgardie, Esperance Plains, Geraldton Sandplains, Hampton, Jarrah Forest, Mallee, Murchison, Nullarbor, Swan Coastal Plain, Warren, Yalgoo.
IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Central band, Nullarbor Plain, Eastern Goldfield, Eastern Mallee, Edel, Fitzgerald, Geraldton Hills, Hampton, Lesueur Sandplain, Northern Jarrah Forest, Perth, Southern Cross, Southern Jarrah Forest, Tallering, Warren, Western Mallee, Western Murchison.
Local Government Areas (LGAs): Augusta Margaret River, Beverley, Bruce Rock, Canning, Chapman Valley, Corrigin, Cunderdin, Dalwallinu, Dandaragan, Dowerin, Dundas, Esperance, Goomalling, Greater Geraldton, Jerramungup, Kalgoorlie-Boulder, Katanning, Kondinin, Koorda, Kulin, Kwinana, Lake Grace, Meekatharra, Merredin, Moora, Mount Marshall, Mukinbudin, Narembeen, Narrogin, Northam, Northampton, Ravensthorpe, South Perth, Trayning, Victoria Plains, Wandering, Wongan-Ballidu, Woodanilling, Yalgoo, Yilgarn.
Alternative Names. Wall barley, wild barley.
General Biology. Growth form. Grass. Life form. Annual, caespitose. Reproduction. Seed. Dispersal. Mammals (on fur), cutting of hay. Photosynthetic Pathway. C3. Toxicity. As plants mature awns and seed become poisonous and harmful to stock. Seedbank persistence. 2 years.
Notes. Rapidly matures after flowering in spring, going on to produce large numbers of viable seed. Most seed is dormant over summer and then germinates the following autumn. Light has an inhibitory effect on germination. Resistant to Group A/1 herbicides (for example diclofop-methyl, Verdict® and Targa®).
Additional information. Origin. Northern Africa, temperate Asia, India, Spain. History of use/introduction. Pasture.
Suggested method of management and control. Prevent seed set. Hand remove or spray with Fusilade® Forte 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. 4-6 weeks after opening rains. 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/