There are different types of grass, From smallest to largest and this one is called "Elephant Grass" as if an Elephant gets inside it and is invisible.
<a href="//commons.wikimedia.org/w/index.php?title=User:Imrozbaig&amp;action=edit&amp;redlink=1" class="new" title="User:Imrozbaig (page does not exist)">Imrozbaig</a>
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<span class="int-own-work" lang="en">Own work</span>