Editing Stone pine (section)

==Description==
[[Image:Umbrella Pine.jpg|thumb|Stone pine in Brissago, on Lake Maggiore, Switzerland]]

The stone pine is a [[conifer]]ous [[evergreen]] tree that can exceed {{convert|25|m|ft|abbr=off|-1}} in height, but {{convert|12-20|m|ft|round=5|abbr=on}} is more typical. In youth, it is a bushy globe, in mid-age an umbrella canopy on a thick trunk, and, in maturity, a broad and flat crown over {{convert|8|m|ft|abbr=on}} in width.<ref name=RHSPS /> The [[Bark (botany)|bark]] is thick, red-brown and deeply fissured into broad vertical plates.

[[File:Pinus_piena_near_Pisa,_Italy.jpg|thumb|Bark of a stone pine, [[Pisa]]]]

;Foliage
The flexible mid-green leaves are needle-like, in bundles of two, and are {{convert|10-20|cm|abbr=on|0}} long (exceptionally up to {{convert|30|cm|abbr=on|0|disp=or}}). Young trees up to 5–10&nbsp;years old bear juvenile leaves, which are very different, single (not paired), {{convert|2–4|cm|abbr=on|frac=4}} long, glaucous blue-green; the adult leaves appear mixed with juvenile leaves from the fourth or fifth year on, replacing it fully by around the tenth year. Juvenile leaves are also produced in regrowth following injury, such as a broken shoot, on older trees.

[[File:Pinus pinea - cone - Flickr - S. Rae.jpg|thumb|Cone]]

The cones are broad, ovoid, {{convert|8–15|cm|frac=2|abbr=on}} long, and take 36&nbsp;months to mature, longer than any other pine. The seeds ([[pine nut]]s, ''piñones'', ''pinhões'', ''pinoli'', or ''pignons'') are large, {{convert|2|cm|frac=4|abbr=on}} long, and pale brown with a powdery black coating that rubs off easily, and have a rudimentary {{convert|4-8|mm|frac=32|abbr=on}} wing that falls off very easily. The wing is ineffective for wind dispersal, and the seeds are animal-dispersed, originally mainly by the [[Iberian magpie]], but in recent history largely by humans.