A bit arched in the leaves, but guessing NOT a Butia as those usually have pretty prominent teeth on the petioles (not all species, though)

Well, if it a Butia, it is capitata (because I don't have any exotic Butias), but I did have a Jubaea somewhere in the collection (I have a LOT of palms and sometimes plants get lost/confused in the crowd). Will look to compare the "teeth" in daylight. Thanks!

You are not the first to find these two species hard to ID when young. Basic difference is the thickness and firmness of the frond leaflets. Jubaea are considerably thicker than Butia and feel almost "fake". Also, Jubaea fronds are considerably shinier than Butia. For some reason the majority of young Jubs have small "hooks " on the end of many of the leaflets and a light string that attaches the leaflet tips to each other while they unfurl. Also, Jubaea fronds generaly "twist" to the left (unscrew direction) when viewed from the end of the frond however there are "right handed" versions as well. I can post photos to further demo the above if desired. PNWPEPS