Juvenile Attalea identification

[Mauna Kea Cloudforest]

Is it possible to ID an attalea when juvenile? This came from Jeff Marcus a few years ago without a species identification. Fronds are 10-12 feet long as of right now. Been in the ground around 3 years. Seems to grow at a decent clip and now accelerating despite our cool montane tropical climate. I think it's Attalea cohune but perhaps someone with more expertise could weight in.

 

 

[Merlyn]

At that size my Cohune had perfectly straight fronds, with no arc to them at all.  But...mine had yearly defoliation from frost so it's probably not totally representative of the species.  I think yours could be Cohune, maybe also Speciosa or Butyracea.  I'd think it's not Phalerata (not plumose enough) or Crassispatha.  A good possibility is Brejinhoensis, it looks really close to the Leu Gardens photo at the top here: https://www.palmpedia.net/wiki/Attalea_brejinhoensis

[Mauna Kea Cloudforest]

5 hours ago, Merlyn said:

At that size my Cohune had perfectly straight fronds, with no arc to them at all.  But...mine had yearly defoliation from frost so it's probably not totally representative of the species.  I think yours could be Cohune, maybe also Speciosa or Butyracea.  I'd think it's not Phalerata (not plumose enough) or Crassispatha.  A good possibility is Brejinhoensis, it looks really close to the Leu Gardens photo at the top here: https://www.palmpedia.net/wiki/Attalea_brejinhoensis

That photo you referred to does look like mine. No frost here, there are small 5 year old curved fronds still on the palm. Each new frond gets bigger and bigger, it's pretty slow growing frond number wise but not slow height wise.