"Russian lawn"

This excerpt from the Widipedia article on engineered language used the
phrase "Russian lawn".  Does anyone know what that means?

"John Quijada's <A HREF="http://en.wikipedia.org/wiki/Ithkuil_language">Ithkuil</A>
is designed for maximum morpho-phonological
conciseness. R. Srikanth's <A HREF="http://www.iiap.res.in/personnel/srik/Lin.html">Lin</A>
is designed for maximum orthographic conciseness. Mark
P. Line's <A
HREF="http://www.polymathix.com/yiklamu/classical/index.html">Classical
Yiklamu</A> is designed as a basis for a <A
HREF="http://en.wikipedia.org/w/index.php?title=Russian_lawn&action=edit&redlink=1">Russian
lawn</A>
experiment, starting with grammatical simplicity and a large lexicon with no
derivational morphology."

stevo   </HTML>

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