Unusual pine ID

[Johnny81]

Whilst walking around Woburn Abbey's gardens in Bedfordshire I found this non-native tree, Long flopping needles, long unopened pine cone and one of its limbs grew actually across the ground! Would like to know which it is! Some of the collection of trees are named but this was not. I forgot to photograph the bark...

[Hedera]

Bhutan pine?

[The Woodman]

Are the needles in groups of five?

[Johnny81]

Blowing up and zooming in it looks like 5 I didn't think to check at the time as I was only walking past

[Dorts]

Bhutan Pine - Pinus wallichiana, is most likely. Frequently planted in large parks and gardens.
Similar species are Pinus bhutanica, a fairly recent introduction from the same region; and the fabulous Pinus patula with bright-green needles, from Mexico, (not so hardy), have yet to reach maturity in Britain.
Dorts.

[The Woodman]

Is it the form of P. wallichiana though, which the low ground creeping branch?

P.ayacahuite has five needles and long cones, it has also hybridised naturally with P.w.

I think it's the hanging needles that suggest P.wallichiana.

Notice how easy it is to distinguish!! -----From the Gymnosperm database.....

"P. bhutanica, however, is easily distinguished by its thin, pruinose, dark brown, finely glandular branchlets and vertically drooping, finer needles with long, golden sheaths while P. wallichiana has thick, succulent, grayish-green, evenly wide branchlets and partially outspreading needles with shorter, grayish sheaths" (Debreczy and Racz 2009).

I wish it was that easy

[Dorts]

Originally Posted by The Woodman

Is it the form of P. wallichiana though, which the low ground creeping branch?

P.ayacahuite has five needles and long cones, it has also hybridised naturally with P.w.

I think it's the hanging needles that suggest P.wallichiana.

Notice how easy it is to distinguish!! -----From the Gymnosperm database.....

"P. bhutanica, however, is easily distinguished by its thin, pruinose, dark brown, finely glandular branchlets and vertically drooping, finer needles with long, golden sheaths while P. wallichiana has thick, succulent, grayish-green, evenly wide branchlets and partially outspreading needles with shorter, grayish sheaths" (Debreczy and Racz 2009).

I wish it was that easy

I agree.
As Pinus bhutanica was only described as 'distinct' from P. wallichiana as recently as 1980, I suggest that it is far from easy to tell them apart. Pinus bhutanica was probably previously thought to be just 'weakly' specimens of P. wallichiana.
But as I say, P. wallichiana, (now called Himalayan White Pine), has been with us for well over a 100 years, so large or mature specimens are most likely to be that species. Though a thorough search of 'parks and gardens' in the more temperate parts of the country may reveal that Pinus bhutanica has been with us all along?
Dorts.