How to identify a syagrus romanzoffiana var. litoralis

[D Palm]

I have seen photos on a common queen Vs. The silver queen but have no in person reference to really wrap my head around the variety difference. Is this a silver or common? I was looking over the photo and did notice a lot of whiteness to the old leaf bases. 
 

 

[Kim]

I’m no Syagrus expert but it doesn’t look exceptionally robust to me, which would be a defining characteristic. 

[Scott W]

Not sure this helps, but this is my S. Romanzoffiana Litoralis grown from seed purchased from RPS in 2/2016.  Silver queen is stated to be more robust and if I recall got that name because it is a "variety" that survived a severe winter here in the south where other Queens died in that same freeze.

Tiki for scale is three feet tall....

 

[D Palm]

Nice Queen.  Mine would look like that if it did not take damage last winter...notice the bend on the right hand corner of that frond.   

I guess the biggest defining feature would be a fat trunk.  My other 2 queens were totally ate up last winter.  This one only had some minor damage.

I still can't tell a defining feature to 100% tell a difference.  The seeds look slightly different online.