They do not have to be actually hybrids, it matters only what you think of those specimens. In other words this topic is not meant to include palms acquired from the beginning as hybrids. Only those are relevant that YOU think or suspect that they are hybrids, while they had been initially acquired as genuine specimens of the one or the other species but meanwhile have tuned out to something different from what you had in mind about the relevant species. That said, related specimens do not need to be certified hybrids or actual ones, they could well be just a different sp or even the promised one although deviating from the stereotype  due to natural variation or particular growing conditions.  It matters only your personal impression, intuition, feeling etc.  I have a loooong such list, so here are a few of them to begin with! And a delicate question; what do you do with those purported or real hybrids, do you adopt them or toss them away, how extremely purist are you?

Kentia hybrid belmoreana x forsteriana

Brahea hybrid (it has glossier and more coriaceous leaves than brandegeei seedlings I grow in a pot from seeds of my specimen).  Last picture shows details of another specimen growing beneath the crown of my brandegeei with more 'papery' leaf texture, yellowish green and with much more tomentum. So either one of them must be a hybrid, I opt for the former.

 

Jubaea with very long and twisting fronds, very susceptible to leaf fungus and deficiencies and with a relatively slender trunk, I suspect a hybrid f2 or higher up.

 

And the last for now certified hybrid Archontophoenix x cunninhamiana! Backside of leaves lacks any kind of ramenta while it has an obviously more glaucous color than the adaxial side but the flowers are purple!

raised this plants from Syagrus insignis seeds but they are not S. insignis because there second or third leave is already pinate like S. weddellianum. They are also not S. weddellianum because the leaflets are much bigger and more spaced out and less numerous then the leaflets on S. weddellianum. I bought the seeds on rps last year and the seeds were bigger and rounder then S. weddellianum seeds. I am not sure if the seeds were collected in the wild or not but I have heard from somebody that the source of the seeds came from cultivated plants so they could be a hybrid between S. insignis and S. weddellianum or some other Syagrus (Lytocaryum) species.

hybrid seedling on the left and S. weddellianum on the right

 

3 more of the possible hybrid seedlings

Spindle x bottle Wattana summowongii 

I have a Butia Oderata silver form . Not far from it was a Syagrus R. that was quite a bit taller. After ten years the Butia had the most lovely fruit , tasted like apricot . The squirrels had a feast and the fruit disappear . I cut the Queen palm down as it got really tall and blocking a good chunk of our view. Last year I was weeding around the Butia and right next to the trunk , a seedling had sprouted . I believe it may be a hybrid from the Butia / Syagrus , time will tell but it is already silver and just started pinnate leaf. Harry

I have a potted date palm seedling that is probably the first one I’ve ever grown. However I dug it out of the ground like 2 years ago (it only had 1 strap) and the root damage + crappy soil stalled it for a good year. Now that it has been growing it has probably 5 of 6 leaves and they appear smoother and less stiff then a typical date, I presume it’s some sort of hybrid. I’ll post a pic tomorrow. 

18 hours ago, TropicsEnjoyer said:

I have a potted date palm seedling that is probably the first one I’ve ever grown. However I dug it out of the ground like 2 years ago (it only had 1 strap) and the root damage + crappy soil stalled it for a good year. Now that it has been growing it has probably 5 of 6 leaves and they appear smoother and less stiff then a typical date, I presume it’s some sort of hybrid. I’ll post a pic tomorrow. 

As promised here are follow up pics (palm in question, leaf underside, and comparison to pure palm):

This one clearly has shinier leaves, and is smaller than my other dates despite being the oldest.To me the leaf underside strongly suggests this is a P. dacty x roeb, if you look closely you see the white specks that roebs usually have.

Compare to pure dates, which are less glossy, lack white specks on leaf veins, and are generally larger.

A handful of these came around a couple years ago, allegedly Veitchia/ Adonidia or visa-versa. Pretty little thing, whatever it is. Dark petioles and very upright.

This one is a bit hard to get a good picture of, but was purchased from Floribunda as a C. onilihensis “weepy”. It’s clearly got dual parentage, probably madgascariensis, given the offset leaflets. But the trunks are just killer looking.

Here's a few deliberate attempts: Trachycarpus "wagnerianus" x princeps., Laccospadix australasica x Howea forsteriana, and Rhopalostylis (Chatham) x Hedyscepe.  The trachy is definitely a hybrid and looks fantastic in the flesh. I have my doubts about the other two but utmost care was taken.

4 hours ago, richnorm said:

Here's a few deliberate attempts: Trachycarpus "wagnerianus" x princeps., Laccospadix australasica x Howea forsteriana, and Rhopalostylis (Chatham) x Hedyscepe.  The trachy is definitely a hybrid and looks fantastic in the flesh. I have my doubts about the other two but utmost care was taken.

Have you observed any so-called hybrid vigor in the dubious ones?

Quite the opposite actually.  The RXL was especially slow and a lighter colour than standard Chatham though of course there is variation.  Flowering shouldn't be too far off.

Phoenix specimen bought as a seedling for reclinata; evidently not!

Both plants grown from seeds collected from Syagrus flexuosa. The right one is obviously a hybrid!

 

Two Guihaia argyrata growing next to each other male and female. Unless there is some kind of sexual dimorphism, the male specimen has considerably less pronounced needle like fibers and is a faster grower with a stronger suckering habit.

First two pictures male specimen

Last two pictures female specimen

On 1/2/2025 at 2:05 PM, Phoenikakias said:

They do not have to be actually hybrids, it matters only what you think of those specimens. In other words this topic is not meant to include palms acquired from the beginning as hybrids. Only those are relevant that YOU think or suspect that they are hybrids, while they had been initially acquired as genuine specimens of the one or the other species but meanwhile have tuned out to something different from what you had in mind about the relevant species. That said, related specimens do not need to be certified hybrids or actual ones, they could well be just a different sp or even the promised one although deviating from the stereotype  due to natural variation or particular growing conditions.  It matters only your personal impression, intuition, feeling etc.  I have a loooong such list, so here are a few of them to begin with! And a delicate question; what do you do with those purported or real hybrids, do you adopt them or toss them away, how extremely purist are you?

Kentia hybrid belmoreana x forsteriana

really interesting

17 hours ago, richnorm said:

Here's a few deliberate attempts: Trachycarpus "wagnerianus" x princeps., Laccospadix australasica x Howea forsteriana, and Rhopalostylis (Chatham) x Hedyscepe.  The trachy is definitely a hybrid and looks fantastic in the flesh. I have my doubts about the other two but utmost care was taken.

I didn't know these hybrids existed
Laccospadix australasica x Howea forsteriana, and Rhopalostylis (Chatham) x Hedyscepe.

Richard Hayward I think we know each other?

1 hour ago, Phoenikakias said:

Both plants grown from seeds collected from Syagrus flexuosa. The right one is obviously a hybrid!

 

konstantinos where do the seeds come from?

56 minutes ago, gyuseppe said:

konstantinos where do the seeds come from?

Macouria

I have a roebelenii I suspect is crossed with dactylifera(?) due to stiffer slightly glaucous fronds and yellow thorns, i wish it suckered too!

Congrats, it's a hybrid!

A dubious Chamaedorea supposedly hoovering, but I think it is a hybrid. Probably Chamaedorea is way more promiscuous than assumed.

I've started hundreds of Jubaea seeds.

This one I suspected of being a hybrid early on.

Perhaps it's just on steroids.