General comments:  
 ** Great job! It was really well done 
 **I liked the introduction, since it was really informative.   
 **I checked out the Wikipedia page for Elymus Lanceolatus (https://en.wikipedia.org/wiki/Elymus_lanceolatus) to double check that no information was repeated.  A lot of your information was new and informative but some things are repetitive if this is the page you are adding to.  For instance, both your sandbox and the Wikipedia page for Elymus Lanceolatus state that the grass comes from western United States.  I would double check that information is not being repeated. 
 **Your citations were good, and everything flowed 
 **I like how you used multiple citations to further some of your points. 

 Grammar 
 ** In the sentence, “This may indirectly help human food consumption as E. lanceolatus may improve soil health.” I would change one “may” to “can.” 

 References 
 **Third paragraph, what is the reference for this, “Elymus lanceolatushas specifically been used for animal foraging. Though E. lanceolatus does not produce a nut or berry product, it can be consumed by grazing animals.” Is it with the first citation? I wasn’t sure