Assuming it's from Coronado Nat. Forest, it'll be Pinus reflexa.

Is it supposed to be a dwarf, or a normal tree? If the latter, you can expect more like 50cm/year.

Resin

Resin,

Can you tell me a bit more of why it would be Pinus reflexa?

Here is a description of the plant.

5-8' x 8-12' wide. For lovers of contorted, character conifers, 'Coronado' is a "leaner", with its leader growing sideways at an angle. A Jerry Morris selection from the Coronado National Forest in eastern AZ. Grows 6-12" per year.

Here is another description, hence the confusion.
A dwarf from the Jerry Moris Rocky Mountain Collection. Bluish-green leaves on a plant growing 2 inches a year. Ball shape. 10 year dimension 2 x 2.

Finally another description that seems to be the combination of the two.
'Coronado' is a dwarf selection that slowly grows to 2-3' tall and as wide over the first ten years. Over time, it may eventually reach 5-8' tall and spread to 8-12' wide. It was reportedly discovered growing in the Coronado National Forest in Arizona. It forms a dense irregular spreading globe of contorted and leaning branches with soft bluish green needles

The picture I found that Nate posted from the Denver botantic gardens appears to be growing 6". I'll roll with the 4-6" estimate.

Pinus strobiformis 'Coronado' 2010
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2011
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Pretty clearly a dwarf. Which species? I yield to Resin.

-Will

"Can you tell me a bit more of why it would be Pinus reflexa?

.... selection from the Coronado National Forest in eastern AZ"

Because the Coronado National Forest is in the middle of where P. reflexa comes from; there aren't any other white pines in that region.

Resin

Resin, would it be safe to then say with a 100% certainty that this plant is actually P. reflexa 'Coronado'?

Maybe someone here knows Jerry Morris and can find out why it was originally identified as P. strobiformis.

USDA maps have it all wrong. That's probably the reason.

Dax

Resin, can you tell us the main differences between Pinus reflexa and Pinus strobiformis?
May be you also have some pics to show us which can make it all more clear?
Thanks in advance!

Hi Coniferjoy,

In the article I've posted before ;-)

Resin

Here is a link that might be useful: White pines paper