The Hainan White Pine or Fenzel's Pine, Pinus fenzeliana, is a tree

Tree

A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...

 endemic

Endemic (ecology)

Endemism is the ecological state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, all species of lemur are endemic to the...

 to the island of Hainan

Hainan

Hainan is the smallest province of the People's Republic of China . Although the province comprises some two hundred islands scattered among three archipelagos off the southern coast, of its land mass is Hainan Island , from which the province takes its name...

 off southern China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. This pine

Pine

Pines are trees in the genus Pinus ,in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pine, although different authorities accept between 105 and 125 species.-Etymology:...

 reaches heights of 20 m with a trunk 1m in diameter.

The Pinus fenzeliana leaves

Leaf

A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

 are needle-like, in fascicles of five, and 5-13 cm long. The cones are 6-11 cm long, with thick, woody scales; the seeds are large, about 8-15 mm long, with a vestigial 3 mm wing, similar to the related Chinese White Pine

Chinese White Pine

The Chinese White Pine is a species of pine native to China, occurring from southern Shanxi west to southern Gansu and south to Yunnan, with outlying populations in Anhui and Taiwan; it also extends a short distance into northern Myanmar. It grows at 1,000-3,300 m altitude, with the lower...

 (Pinus armandii). Hainan White Pine differs from that species in the shorter needles, smaller cones, and in being adapted to a subtropical rainforest

Rainforest

Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...

 habitat.

A pine from the Dabie Shan mountains in Anhui

Anhui

Anhui is a province in the People's Republic of China. Located in eastern China across the basins of the Yangtze River and the Huai River, it borders Jiangsu to the east, Zhejiang to the southeast, Jiangxi to the south, Hubei to the southwest, Henan to the northwest, and Shandong for a tiny...

, eastern China, first described as a species Pinus dabeshanensis, is occasionally treated as a variety of this species, but more commonly as a variety of Pinus armandii, which it more closely resembles.

Reports of Pinus fenzeliana from Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

 have not been verified; trees in this area have proved to be either Vietnamese White Pine

Vietnamese White Pine

The Vietnamese White Pine, Pinus dalatensis, is a species of pine endemic to Vietnam, where it grows in the mountains of the central and south-central parts of the country at 1,400-2,300 m altitude.-Description:...

 (Pinus dalatensis) or Guangdong White Pine (Pinus wangii), which both differ markedly in cone and seed size and shape, though similar in foliage.