Hello all; I recently bought this as a "Blushing Philodendron" (P. erubescens) in Florida. However, I am quite positive it is not that.
I have some inclination as to it being a P. subincisum/wilsonii, as one of these is being sold in another nursery near me. This and the many shared characteristics are my only leads, but I am no expert and would love some help in properly identifying this baby.
Attached are several pictures, though more can be taken.
Thanks for anything in advance.

Wow, nice find!

As with many aroids, Philodendron leaves can be variable but I agree, it's definitely not Blushing Philodendron (Philodendron erubescens)

I'm not familiar with Philodendron (Philodendron subincisum) but here's a photo from our database for comparison:




Hopefully those more familiar with Philodendrons will be along soon with suggestions to an exact ID.

@plantladylin thank you very much for the information! What makes it a better find was that is was only $8! :D

As an update, I have been told by two knowledgeable folk that it may also be a Philodendron giganteum. Attached is a picture of one for comparison.

I am still stuck between the P. subincisum/"wilsonii" and the P. giganteum.

Giant Philodendron (Philodendron giganteum) does also looks similar to your plant.

@Gina1960 is knowledgeable about Aroids, perhaps she will have some suggestions.

Well, there are some ways to tell. A description of Philodendron subincisum by Dr. Thomas Croat in the literature from the IAS says the following:
Subincisum is from Mexico; 'wilsonii' is an invalid name. The petioles of subincisum max out at about 26 inches, and are terete at the attachment. Their coloration is a medium green that turns tan then reddish. True subincisum was, at the time that the article was written, considered rare. It was initially collected in Mexico for typing in 1965, and was only re-collected one time after that from natural habitat. Some plants observed since that time are believed to by hybrids. It does climb. The inflo has 2 per leaf axil, the sheath is a medium green, the spathe is a maroon purple outside and a bright cherry red inside. The spadix is hooded and does not show.

P. giganteum is not a climber. It has a petiole that is longer than its leaf blade. The spathe tube is bright red.

I think you might have to grow it a bit and see what it does to be able to differentiate it. Does it climb or not? What do its inflorescences look like? It may not be evident just from photos what it is. There are a lot of philos that look like that to be honest. Looking at your photos it really does look like it is going to climb, all those roots in that container!

This DB pic is from Miami FL street. I read that original nursery owner that imported it grew and gave it away to friends and family. It is actually very widespread in Miami FL street landscaping by now. I've seen it sold at nurseries and Fairchild gardens has pretty old plantings climbing on pergola. With leaves at 2-3 feet , huge. But mine indoors has 15" leaves , but I grow it in a rather small pot to prevent it from getting bigger. It's a monster grower! I keep cutting of and repotting best tips. The base quickly resprouts with smaller leaves (for awhile…). Have 4 pots , discarded 2 bases; soon need to cut a few more tips 😁.
Have a few in FL and a few in NJ. I think it's taking over😱.
And it was called Wilsonii after the owner of that original nursery. He never went commercial with it. It's like a common name now. But many people refer to it this way.
I'll try to find more pics .
It climbs on Palms like in photo very well.
Those Palms are gone now: the lot was cleared completely for construction.
A huge plumie grew next to it, gone too.

The leaves are wavy. petioles length depends on light levels: quite short in bright light and double that in low levels.
I've never seen an inflorescence, not even on very old ones.
The OP plant looks very similar to mine.

The Exotic Rainforest page also has photos and information on P. subincisum: https://www.exoticrainforest.c... and talks about it's correct name, saying: "According to all the databases and Dr. Tom Croat of the Missouri Botanical Garden, this plant is not Philodendron wilsonii. That name is said by Dr. Croat to have originated from the late Bob Wilson, owner of Fantastic Gardens, then passed around as the horticultural name. The correct name for the species is Philodendron subincisum, and the plant is endemic to Mexico.

I see that our database does list it Also sold as: P. wilsonii and P. 'Wilsonii'.

I am not disputing that P. subincisum is a correct name. But it's the same plant that is called wilsonii, correct or not.

Yeah this has happened before LOL. Most notably with Alocasia xAmazonica. Not a species, not a hybrid. Named after the nursery where the owner discovered a 'sport' of Alocasia sanderiana and named it after his nursery, Amazonica Nursery, which was a nursery down in So FL back in the day