It's clearly a S. palmetto x S. causiarum. It acts like a very robust palmetto. No ligule action. 

The seed differences add to the confusion more than anything for me. I suspect people just loved Palms ages ago and shuffled them all around and we call it nature 

Dominguensis seeds photod. They are huge 1/2" wide+ usually, just the seed, from enormous oblong chubby looking fruits with a lightly sweet scent... it's a similar smell to others but sweeter I think. The seeds also have the indentation 

Causarium I've read have small seeds and Palmetto even smaller...  i see a couple of huge Mexicana/Texana trees around with huge 15-20 foot wide canopies and I have to wonder if they just adapted differently or if they come from a lineage crossed with a giant like Causarium...

Dominguensis do not seem very large at all to me but maybe I'm not seeing pure Dominguensis? They seem to just grow alot taller than a Palmetto in a tropical location with a thicker trunk and enormous seeds on short brachs

Edited September 28, 20214 yr by DallasPalms

3 hours ago, buffy said:

It's clearly a S. palmetto x S. causiarum. It acts like a very robust palmetto. No ligule action. 

Is the hybrid just as cold hardy as a normal palmetto? Super interesting!

3 hours ago, DallasPalms said:

The seed differences add to the confusion more than anything for me. I suspect people just loved Palms ages ago and shuffled them all around and we call it nature 

Dominguensis seeds photod. They are huge 1/2" wide+ usually, just the seed, from enormous oblong chubby looking fruits with a lightly sweet scent... it's a similar smell to others but sweeter I think. The seeds also have the indentation 

Causarium I've read have small seeds and Palmetto even smaller...  i see a couple of huge Mexicana/Texana trees around with huge 15-20 foot wide canopies and I have to wonder if they just adapted differently or if they come from a lineage crossed with a giant like Causarium...

Dominguensis do not seem very large at all to me but maybe I'm not seeing pure Dominguensis? They seem to just grow alot taller than a Palmetto in a tropical location with a thicker trunk and enormous seeds on short brachs

I know nothing about sabals seeds but they look very yummy, They look like raisinets or chocolate 

2 hours ago, ZPalms said:

Is the hybrid just as cold hardy as a normal palmetto? Super interesting!

Hard to say. I had it next to a heated pool during the -5F. It was defoliated, but has come back fine. I'm guessing its probably similar to S. palmetto. 

On 9/27/2021 at 4:55 PM, ZPalms said:

I got bored and decided to figure out where the first picture was taken and see how the sabal is doing. It's looks so beautiful, I wish they had a better cold tolerance so I could have one but anyway it looks like back in 2007 their must of been another one but it died and in 2016 they replaced it with coconuts!

Coconuts grow so fast, it took no time to replace that spot!

2007!

2016!

 

2019!

2021!

 

I was doing some research on S. domingensis and through some detective work and with the help of Google AI was able to find the location (in Bokeelia, Florida) of this house with the big old specimen out front. Sad to say this is yet another one of these situations where something great is felled...the above picture from 2021 is the last image with the palm in place. By September of 2023 it was gone. So sad when you think about how old this palm may have been. I'm hoping it wasn't a victim of an ignorant homeowner and rather of the hurricanes during that period, which included a 6-to-9-foot storm surge during Hurricane Ian in September 2022. This palm does come from a heavy-duty hurricane zone, so you might think it would stand tough against it, but it is S. causiarum, rather than S. domingensis, that occupies the hard-hit coastal zone...S. domingensis is typically found in the interior where it may not have evolved such a tough disposition...You can see the image progression on Google StreetView by looking at the past dates (click "see more dates") here.

I grow this in Jacksonville FL ----collected the seeds in 1988 from habitat in Northern Domincan Republic --- in my front yard ---

Nobody has mentioned sabal Bermudana which is a very nice palm and has been unfazed down to 18f and a foot of snow for me

All the S. bermudianas i Have come across are pretty specious---- I got one thats grown up big but it doesnt key out to S. bermudiana

 

the only S. bermudiana that I am convinced is (by Key) was at Dent Smiths house ----- he had the resources to go collect stuff from habitat.  

I guess I would have to ID mine

it makes seed so……

im pretty sure its not palmetto though just based on the fronds 

Mine is from Jungle Music