Name that palm please

[Cindy Adair]

This photo was taken in PR on a farm tour and then sent (to me of all people) to identify it. 

The owner of the palm does not know. Please help me give them an answer.

Thanks!

[Neil C]

Yellow latan?

Regards Neil

[Cindy Adair]

That was my first guess as well. However my track record on naming palms I have not personally grown is abysmal. The yellow petioles are quite pretty and I hope that is the correct name. If so, sadly no seeds expected, since I understand all the Latans are dioecious.

Anybody else want to chime in?

[sergiskan]

Sabal sp?, with some nutrients deficiency..

[PalmTreeDude]

I can't tell exactly how big it is in the picture, but could it be a Sabal 'riverside' ?

[mike in kurtistown]

Two palms with palmate leaves with yellow petioles that I know of, besides yellow latans which have no armament on the petiole, would be Medemia argun (from Djibouti and Somaliland), and Livistona endauensis (peninsular Malaysia). Both are exceedingly rare in collections. Petioles on the Livistona are well-armed, armament on the Medemia depends on their age. I can't tell from the picture if the petioles are armed.

 

[Cindy Adair]

Thanks so much for the interest and I learned from each post!

Probably the photo was taken by a phone camera and I just can't focus down sharply. My best guess though is no teeth.

The grower is not overly obsessed with obtaining the rarest of rare palms so I am guessing not Medemia or the uncommon Livistona or an uncommon (in PR) Sabal.

Sabal causiarum is common in PR, but of course should have green petioles. Is a nitrogen (?) deficient S. causiarum even a possibility based on the one photo?

[sergiskan]

The leaflets also shown some yellow tips, potassium is my guess.

[sergiskan]

Usually with nitrogen deficiency all the plant zones shown chlorotic, green lime to yellow.

[cfkingfish]

Cindy-

Are the petiole leaf bases split? It is hard to tell in the picture, if they are it is most likely a nutrient deficient S. causiarum. 

[Cindy Adair]

I don't know but will see if the owner can answer. Thanks so much!