| 词条 | Pinus bhutanica |
| 释义 |
| name = Bhutan white pine | image = Buteo burmanicus.jpg | image_caption = Himalayan buzzard (Buteo burmanicus) on Pinus bhutanica | status = LC | status_system = IUCN3.1 | status_ref = [1] | display_parents = 3 | genus = Pinus | parent = Pinus subsect. Strobus | species = bhutanica | authority = Grierson, Long & Page }} Pinus bhutanica, which may be called the Bhutan white pine, is a tree restricted to Bhutan and adjacent parts of northeast India (Arunachal Pradesh) and southwest China (Yunnan and Tibet).[1] Along with the related Pinus wallichiana it is a constituent of lower altitude blue pine forests. This pine reaches a height of 25 meters. Note that P. wallichiana is sometimes called by the common name 'Bhutan pine'. The needles are in bundles of five, up to 25 cm long. The cones are 12–20 cm in length, with thin scales; the seeds are 5–6 mm long, with a 20–25 mm wing. It differs from P. wallichiana in the much longer, strongly drooping needles, and the cones being slightly smaller and red-brown, rather than yellow-buff, when mature. It is also adapted to generally warmer, wetter climates at lower altitudes, with an intense summer monsoon. Despite the two being closely related and at least occasionally growing together, no hybrids or intermediates have ever been reported. References1. ^1 {{Cite journal | author = Zhang, D | author2 = Katsuki, T. | author3 = Rushforth, K. | last-author-amp = yes | title = Pinus bhutanica | journal = The IUCN Red List of Threatened Species | volume = 2013 | page = e.T42555A2987778 | publisher = IUCN | date = 2013 | url = http://www.iucnredlist.org/details/42555/0 | doi = 10.2305/IUCN.UK.2013-1.RLTS.T42555A2987778.en | access-date = 9 January 2018}}
Further reading
5 : Pinus|Flora of Arunachal Pradesh|Flora of Tibet|Flora of Yunnan|Trees of Bhutan |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。