Line drawing; for full size image go to the Flora of China (Wu and Raven 1999).

Common Names

Yunnan pine (Farjon 1984).

Taxonomic notes

Syn: P. insularis var. yunnanensis (Franch.) Silba 1984; P. yunnanensis var. tenuifolia Cheng & Law 1975; P. insularis var. tenuifolia (Cheng & Law) Silba 1990 (Li 1997); P. tabulaeformis var. yunnanensis (Franchet) Shaw (Farjon 1984). Closely related species in subsection Pinus include: P. tabuliformis (adjunct range to N), P. kesiya (adjunct range to S) (Richardson and Rundel 1998), and (via cpDNA data) P. hwangshanensis, P. taiwanensis and P. thunbergii (Price et al. 1998).

Description

Tree:
Bark:
Branches:
Shoots: Can grow to the exceptional length of 35 cm in one season.
Leaves: In fascicles of 2-3, 15-20(30) cm long.
Cones: 3-7[10] cm long, light brown, situated laterally in groups of 2-5, erect on short peduncles, opening in the second summer of growth.
Cone scales: Purplish-brown on the inside. Apophysis keeled, ending in a short prickle on the umbo (Farjon 1984).

Range

China: predominantly at 600-3000 m elevation on the high plateaus of Yunnan (Li 1997), but extending N into Sichuan, where it intergrades with P. tabuliformis, and S into N Burma, where it intergrades with P. kesiya. In recent times it has extended its range as competing broadleaf forests are logged (Farjon 1984, Li 1997, Richardson and Rundel 1998).

Big Tree

Oldest

Dendrochronology

Ethnobotany

Observations

Remarks

Citations

This page is from the Gymnosperm Database
URL: http://www.conifers.org/pi/pin/yunnanensis.htm
Edited by Christopher J. Earle
Last modified on 2008.09.22