Lolium rigidum, Variety trials, Varieties, Western Australia
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WITH the exception of subterranean clover, no introduced pasture species has a wider application in Western Australia than Wimmera ryegrass.
This popular pasture plant is believed to have originated as a natural cross between two ryegrass species and first became prominent in the Wimmera district of Victoria.
Reeves, J T. and Fisher, H. M.
"The Merredin Early strain of Wimmera ryegrass,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 1:
4, Article 16.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol1/iss4/16