The most significant of all the grasses found at Perce White Reserve is zoysia macrantha or prickly couch. It is the only record of its occurrence between Cape Otway and Westernport Bay.
Zoysia is one of several salt grasses found at the Reserve which recall the time when the Yarra River did not have the shape and form it has today. What is Perce White Reserve today would once have been part of the estuarine opening to the Yarra River - a salty marshy area.
To find out about the other salt grasses found at the Reserve go to
http://mc2.vicnet.net.au/home/fopmf/web/grasses.html
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