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Sorghum halepense (L.) Pers
Common name: Johnson Grass
Johnson grass is a robust, mostly erect perennial growing 50–300 cm tall. The leaf-blade surface is smooth and is 20–90 cm long and 5–40 mm wide, hairless and tapered to a fine point. Grows in both tropical and temperate regions of Australia and flowers from November to May.
Distribution:
Western Australia, South Australia, Queensland, New South Wales, Victoria.
Western Australia: Fitzgerald, Carnarvon, Irwin, Drummond, Dale, Menzies, Warren, Roe.
South Australia: Lake Eyre, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South-eastern.
Queensland: Cook, Burke, North Kennedy, South Kennedy, Port Curtis, Leichhardt, Burnett, Wide Bay, Darling Downs, Moreton.
New South Wales: North Coast, Central Coast, Northern Tablelands, Central Tablelands, Southern Tablelands, North-Western Slopes, Central-Western Slopes, South-Western
Slopes, South Far Western Plains.
Victoria: Murray Mallee, Wimmera, Riverina, Victorian Volcanic Plain, Eastern Highlands, Gippsland Plains.
Bibliography:
Auld, B.A. and Medd, R.W. (1987) Weeds: an illustrated botanical guide to the weeds of Australia, Inkata Press, Melbourne.
Simon, B.K. and Sharp, D. (2002) CD Ausgrass: grasses of Australia, Australian Biological Resources Study, Canberra and Environmental protection Agency, Brisbane
