Any chance I got a palm ID right? I tried a key at Keys | Identifying Commonly Cultivated Palms and ended up with Carpentaria acuminata, but it said that could be confused with Veitchia merrillii, which I decided fit this better. Here are trees in two locations in Honolulu. I think they're the same kind of palm. The descriptors I ticked were pinnate leaves, yellow midrib, no pleating, leaves variable along rachis, in a single plane. That took me down to a single hit, so I didn't click anything else. 1st tree: Trees at my building in Waikiki:
Well, I have labels at two other locations for Veitchia merrillii: University of Hawaii at Manoa: Honolulu Zoo: All that's missing is my ability to be sure I know when I'm looking at the same kind of tree, but I think these are the same as the ones I posted. Carpentaria looks like a thinner taller tree, with wider spacing of the bars along the trunk. Only problem is, just when I learn the name, it seems it's been changed to Adonidia merrillii, according to this page: Adonidia merrillii - Palmpedia - Palm Grower's Guide Here is another photo of a tree at my building in Waikiki, with a couple of ripe red fruits.