Editing Pinus roxburghii (section)

==Description==
''Pinus roxburghii'' is a large [[tree]] reaching {{convert|30|-|50|m|abbr=off}} with a trunk diameter of up to {{convert|2|m|ft|abbr=on|frac=2}}, exceptionally {{convert|3|m|0|abbr=on}}. The [[Bark (botany)|bark]] is red-brown, thick and deeply fissured at the base of the trunk, thinner and flaky in the upper crown. The [[leaves]] are needle-like, in fascicles of three, very slender, {{convert|20|-|35|cm|abbr=off|frac=2}} long, and distinctly yellowish green.

The [[conifer cone|cones]] are ovoid conic, {{convert|12|-|24|cm|abbr=on|frac=2}} long and {{convert|5|-|8|cm|abbr=on|frac=2}} broad at the base when closed, green at first, ripening glossy chestnut-brown when 24 months old. They open slowly over the next year or so, or after being heated by a [[wildfire|forest fire]], to release the seeds, opening to {{convert|9|-|18|cm|abbr=on|frac=2}} broad. The seeds are {{convert|8|-|9|mm|frac=16}} long, with a {{convert|40|mm|abbr=on|frac=4}} wing, and are wind-[[Seed dispersal|dispersed]].

{{gallery|mode=packed
|pinrox08.jpg|Bark
|A description of the genus Pinus (Tab. XXI) (7797065438).jpg|Needles
|pinrox00.jpg|Male cones
|Chir Pine Cone.jpg|Female cones
}}

=== Similar species ===
''Pinus roxburghii'' is closely related to ''[[Pinus canariensis|P.&nbsp;canariensis]]'' (Canary Island pine), ''[[Pinus brutia|P.&nbsp;brutia]]'' (Turkish pine) and ''[[Pinus pinaster|P.&nbsp;pinaster]]'' (maritime pine), which all share many features with it. It is a relatively non-variable species, with constant morphology over the entire range.

=== Chemistry ===
''Pinus roxburghii'' contains large amounts of [[taxifolin]].<ref>{{cite journal |author=Stefan Willför |author2=Mumtaz Ali |author3=Maarit Karonen |author4=Markku Reunanen |author5=Mohammad Arfan |author6=Reija Harlamow |name-list-style=amp |year=2009 |title=Extractives in bark of different conifer species growing in Pakistan |journal=[[Holzforschung]] |volume=63 |issue=5 |pages=551–558 |doi=10.1515/HF.2009.095 |s2cid=97003177}}</ref>