Livistona chinensis leaf with a short stem

[miamicuse]

I have one Livistona chinensis that produced a full size leaf but a much shorter stem compared to the rest of them.

I have over a dozen of Livistona chinensis at the property and I don't remember seeing this before.

Is this normal or could it be indications of a problem?

I have also two Chambeyronia macrocarpa (out of seven) doing the same, where a new leaf is only about half the height of the older leaves, but otherwise look perfectly healthy.

Just cooler weather might be an explanation?  or some sort of deficiency?

[Merlyn]

@miamicuse I have seen my Bismarck do something kinda similar.  It generally opens fronds early in winter, maybe 2/3 the normal petiole length.  The fronds look normal and then the petiole gradually grows to more-or-less normal size by summertime.  That one seems unusually short though, but otherwise looks fine.  It's a bit pale green except for the midrib, I'm guessing that's just because it's new.  The older fronds have a little bit of translucent spotting = potassium deficiency, but nothing really significant.  Could it be suddenly getting a lot more sun than before?  

[Jim in Los Altos]

A few of my L. chinensis do that in later winter but the petioles eventually grow out to normal length. 

[NC_Palms]

This is normal. Mine that gets damaged each winter in the ground in NC does this. As it grows more throughout the season it will get longer stems. 

[Tomas]

This one is in a pot. It frequently produces the shortened petioles and two times the new spear got jammed. The last time when the pot got too small and it became too difficult to water, I repotted and you can see the new leaf with very long petiole. I think boron is involved. What is your pH?